diff --git a/package-lock.json b/package-lock.json
index 73d1ea7f68..bff1eb2fb2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7364,9 +7364,9 @@
       }
     },
     "node_modules/async": {
-      "version": "3.2.2",
-      "resolved": "https://registry.npmjs.org/async/-/async-3.2.2.tgz",
-      "integrity": "sha512-H0E+qZaDEfx/FY4t7iLRv1W2fFI6+pyCeTw1uN20AQPiwqwM6ojPxHxdLv4z8hi2DtnW9BOckSspLucW7pIE5g=="
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.0.tgz",
+      "integrity": "sha512-TR2mEZFVOj2pLStYxLht7TyfuRzaydfpxr3k9RpHIzMgw7A64dzsdqCxH1WJyQdoe8T10nDXd9wnEigmiuHIZw=="
     },
     "node_modules/async-limiter": {
       "version": "1.0.1",
@@ -32075,7 +32075,7 @@
         "@overleaf/logger": "^3.1.0",
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^3.2.0",
         "body-parser": "^1.19.0",
         "express": "4.17.1",
         "mongodb": "^3.6.0"
@@ -32092,11 +32092,6 @@
         "timekeeper": "^2.2.0"
       }
     },
-    "services/chat/node_modules/async": {
-      "version": "3.2.3",
-      "resolved": "https://registry.npmjs.org/async/-/async-3.2.3.tgz",
-      "integrity": "sha512-spZRyzKL5l5BZQrr/6m/SqFdBN0q3OCI0f9rjfBzCMBIP4p75P620rR3gTmaksNOhmzgdxcaxdNfMy6anrbM0g=="
-    },
     "services/chat/node_modules/body-parser": {
       "version": "1.19.0",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -32317,7 +32312,7 @@
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "3.2.2",
+        "async": "3.2.0",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "diskusage": "^1.1.3",
@@ -32417,7 +32412,7 @@
         "@overleaf/logger": "^3.1.0",
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "express": "^4.17.1",
@@ -32434,6 +32429,14 @@
         "timekeeper": "2.2.0"
       }
     },
+    "services/contacts/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/contacts/node_modules/diff": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
@@ -32482,7 +32485,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/object-persistor": "^1.0.1",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "celebrate": "^13.0.4",
@@ -32536,6 +32539,14 @@
         "node": ">=10"
       }
     },
+    "services/docstore/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/docstore/node_modules/celebrate": {
       "version": "13.0.4",
       "resolved": "https://registry.npmjs.org/celebrate/-/celebrate-13.0.4.tgz",
@@ -32657,7 +32668,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.1",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.5.0",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "diff-match-patch": "https://github.com/overleaf/diff-match-patch/archive/89805f9c671a77a263fc53461acd62aa7498f688.tar.gz",
@@ -32677,6 +32688,14 @@
         "timekeeper": "^2.0.0"
       }
     },
+    "services/document-updater/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/document-updater/node_modules/body-parser": {
       "version": "1.19.0",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -33072,7 +33091,7 @@
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "base64-stream": "^0.1.2",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
@@ -33093,6 +33112,14 @@
         "timekeeper": "2.2.0"
       }
     },
+    "services/github-sync/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/github-sync/node_modules/p-limit": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
@@ -33346,7 +33373,7 @@
         "@overleaf/logger": "^3.1.0",
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "express": "4.17.1",
@@ -33363,6 +33390,14 @@
         "sinon": "^9.2.4"
       }
     },
+    "services/notifications/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/notifications/node_modules/body-parser": {
       "version": "1.19.0",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -33589,7 +33624,7 @@
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/settings": "^3.0.0",
         "archiver": "^5.3.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "express": "^4.17.1",
@@ -33636,6 +33671,14 @@
         "node": ">=10"
       }
     },
+    "services/project-archiver/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/project-archiver/node_modules/date-and-time": {
       "version": "0.14.2",
       "resolved": "https://registry.npmjs.org/date-and-time/-/date-and-time-0.14.2.tgz",
@@ -33726,7 +33769,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.5.0",
         "aws-sdk": "^2.650.0",
         "bluebird": "^3.7.2",
         "body-parser": "^1.19.0",
@@ -33789,6 +33832,14 @@
         "@hapi/hoek": "^8.3.0"
       }
     },
+    "services/project-history/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/project-history/node_modules/body-parser": {
       "version": "1.19.0",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -34142,7 +34193,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^0.9.0",
         "base64id": "0.1.0",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
@@ -34167,6 +34218,11 @@
         "uid-safe": "^2.1.5"
       }
     },
+    "services/real-time/node_modules/async": {
+      "version": "0.9.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-0.9.2.tgz",
+      "integrity": "sha1-rqdNXmHB+JlhO/ZL2mbUx48v0X0="
+    },
     "services/real-time/node_modules/sandboxed-module": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/sandboxed-module/-/sandboxed-module-0.3.0.tgz",
@@ -34205,7 +34261,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.1.2",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "express": "^4.17.1",
@@ -34224,6 +34280,14 @@
         "sinon": "^9.2.4"
       }
     },
+    "services/references/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/references/node_modules/uuid": {
       "version": "7.0.3",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-7.0.3.tgz",
@@ -34240,7 +34304,7 @@
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "express": "^4.17.1",
@@ -34257,6 +34321,14 @@
         "sinon": "^9.2.4"
       }
     },
+    "services/spelling/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/spelling/node_modules/underscore": {
       "version": "1.13.1",
       "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.1.tgz",
@@ -34270,7 +34342,7 @@
         "@overleaf/settings": "^3.0.0",
         "algolia-search": "~1.5.5",
         "args-js": "0.10.12",
-        "async": "3.2.2",
+        "async": "3.2.0",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "express": "4.17.1",
@@ -34516,7 +34588,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.1",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "dropbox": "^10.24.0",
@@ -34538,6 +34610,14 @@
         "sinon-stub-promise": "^4.0.0"
       }
     },
+    "services/third-party-datastore/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/third-party-datastore/node_modules/diff": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
@@ -34609,7 +34689,7 @@
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "express": "^4.17.1",
@@ -34629,6 +34709,14 @@
         "sinon-chai": "^3.7.0"
       }
     },
+    "services/third-party-references/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/third-party-references/node_modules/diff": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
@@ -34704,7 +34792,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "aws-sdk": "^2.643.0",
         "body-parser": "^1.19.0",
         "bson": "^1.1.5",
@@ -34735,6 +34823,14 @@
         "timekeeper": "2.2.0"
       }
     },
+    "services/track-changes/node_modules/async": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
+    },
     "services/track-changes/node_modules/body-parser": {
       "version": "1.19.0",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -35044,7 +35140,7 @@
         "angular": "~1.8.0",
         "angular-sanitize": "~1.8.0",
         "archiver": "^5.3.0",
-        "async": "3.2.2",
+        "async": "0.6.2",
         "backbone": "^1.3.3",
         "basic-auth": "^2.0.1",
         "bcrypt": "^5.0.0",
@@ -35327,6 +35423,11 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "services/web/node_modules/async": {
+      "version": "0.6.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-0.6.2.tgz",
+      "integrity": "sha1-Qf0DijgSwKi8GELs8IumPrA5K+8="
+    },
     "services/web/node_modules/body-parser": {
       "version": "1.19.0",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -40001,7 +40102,7 @@
         "@overleaf/settings": "^3.0.0",
         "acorn": "^7.1.1",
         "ajv": "^6.12.0",
-        "async": "^3.2.2",
+        "async": "^3.2.0",
         "body-parser": "^1.19.0",
         "chai": "^4.3.6",
         "chai-as-promised": "^7.1.1",
@@ -40014,11 +40115,6 @@
         "timekeeper": "^2.2.0"
       },
       "dependencies": {
-        "async": {
-          "version": "3.2.3",
-          "resolved": "https://registry.npmjs.org/async/-/async-3.2.3.tgz",
-          "integrity": "sha512-spZRyzKL5l5BZQrr/6m/SqFdBN0q3OCI0f9rjfBzCMBIP4p75P620rR3gTmaksNOhmzgdxcaxdNfMy6anrbM0g=="
-        },
         "body-parser": {
           "version": "1.19.0",
           "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -40204,7 +40300,7 @@
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "3.2.2",
+        "async": "3.2.0",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "chai": "^4.3.6",
@@ -40291,7 +40387,7 @@
         "@overleaf/logger": "^3.1.0",
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "chai": "^4.3.6",
@@ -40306,6 +40402,14 @@
         "underscore": "~1.13.1"
       },
       "dependencies": {
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "diff": {
           "version": "4.0.2",
           "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
@@ -40347,7 +40451,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/object-persistor": "^1.0.1",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "celebrate": "^13.0.4",
@@ -40395,6 +40499,14 @@
             "xdg-basedir": "^4.0.0"
           }
         },
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "celebrate": {
           "version": "13.0.4",
           "resolved": "https://registry.npmjs.org/celebrate/-/celebrate-13.0.4.tgz",
@@ -40493,7 +40605,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.1",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.5.0",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "chai": "^4.3.6",
@@ -40511,6 +40623,14 @@
         "timekeeper": "^2.0.0"
       },
       "dependencies": {
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "body-parser": {
           "version": "1.19.0",
           "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -40840,7 +40960,7 @@
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "base64-stream": "^0.1.2",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
@@ -40859,6 +40979,14 @@
         "timekeeper": "2.2.0"
       },
       "dependencies": {
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "p-limit": {
           "version": "2.3.0",
           "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
@@ -41017,7 +41145,7 @@
         "@overleaf/logger": "^3.1.0",
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "chai": "^4.3.6",
@@ -41032,6 +41160,14 @@
         "underscore": "1.13.1"
       },
       "dependencies": {
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "body-parser": {
           "version": "1.19.0",
           "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -41337,7 +41473,7 @@
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/settings": "^3.0.0",
         "archiver": "^5.3.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "chai": "^4.3.6",
@@ -41379,6 +41515,14 @@
             "xdg-basedir": "^4.0.0"
           }
         },
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "date-and-time": {
           "version": "0.14.2",
           "resolved": "https://registry.npmjs.org/date-and-time/-/date-and-time-0.14.2.tgz",
@@ -41452,7 +41596,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.5.0",
         "aws-sdk": "^2.650.0",
         "bluebird": "^3.7.2",
         "body-parser": "^1.19.0",
@@ -41510,6 +41654,14 @@
             "@hapi/hoek": "^8.3.0"
           }
         },
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "body-parser": {
           "version": "1.19.0",
           "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -41812,7 +41964,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^0.9.0",
         "base64id": "0.1.0",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
@@ -41835,6 +41987,11 @@
         "underscore": "1.13.1"
       },
       "dependencies": {
+        "async": {
+          "version": "0.9.2",
+          "resolved": "https://registry.npmjs.org/async/-/async-0.9.2.tgz",
+          "integrity": "sha1-rqdNXmHB+JlhO/ZL2mbUx48v0X0="
+        },
         "sandboxed-module": {
           "version": "0.3.0",
           "resolved": "https://registry.npmjs.org/sandboxed-module/-/sandboxed-module-0.3.0.tgz",
@@ -41884,7 +42041,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.1.2",
         "body-parser": "^1.19.0",
         "bson": "^1.1.5",
         "bunyan": "^1.8.15",
@@ -41901,6 +42058,14 @@
         "uuid": "^7.0.3"
       },
       "dependencies": {
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "uuid": {
           "version": "7.0.3",
           "resolved": "https://registry.npmjs.org/uuid/-/uuid-7.0.3.tgz",
@@ -41918,7 +42083,7 @@
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "chai": "^4.3.6",
@@ -41933,6 +42098,14 @@
         "underscore": "1.13.1"
       },
       "dependencies": {
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "underscore": {
           "version": "1.13.1",
           "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.1.tgz",
@@ -41948,7 +42121,7 @@
         "@overleaf/settings": "^3.0.0",
         "algolia-search": "~1.5.5",
         "args-js": "0.10.12",
-        "async": "3.2.2",
+        "async": "3.2.0",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "chai": "^4.3.6",
@@ -42157,7 +42330,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.1",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "chai": "^4.3.6",
@@ -42177,6 +42350,14 @@
         "uuid": "^8.3.2"
       },
       "dependencies": {
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "diff": {
           "version": "4.0.2",
           "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
@@ -42236,7 +42417,7 @@
         "@overleaf/metrics": "^4.0.0",
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "body-parser": "^1.19.0",
         "bunyan": "^1.8.15",
         "chai": "^4.3.6",
@@ -42254,6 +42435,14 @@
         "sinon-chai": "^3.7.0"
       },
       "dependencies": {
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "diff": {
           "version": "4.0.2",
           "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
@@ -42319,7 +42508,7 @@
         "@overleaf/o-error": "^3.4.0",
         "@overleaf/redis-wrapper": "^2.0.0",
         "@overleaf/settings": "^3.0.0",
-        "async": "^3.2.2",
+        "async": "^2.6.3",
         "aws-sdk": "^2.643.0",
         "body-parser": "^1.19.0",
         "bson": "^1.1.5",
@@ -42348,6 +42537,14 @@
         "yazl": "^2.5.1"
       },
       "dependencies": {
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
         "body-parser": {
           "version": "1.19.0",
           "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -42630,7 +42827,7 @@
         "angular-mocks": "~1.8.0",
         "angular-sanitize": "~1.8.0",
         "archiver": "^5.3.0",
-        "async": "3.2.2",
+        "async": "0.6.2",
         "autoprefixer": "^9.7.6",
         "babel-loader": "^8.2.4",
         "babel-plugin-angularjs-annotate": "^0.10.0",
@@ -42874,6 +43071,11 @@
           "integrity": "sha512-1OvF9IbWwaeiM9VhzYXVQacMibxpXOMYVNIvMtKRyX9SImBXpKcFr8XvFDeEslCyuH/t6KRt7HEO94AlP8Iatw==",
           "dev": true
         },
+        "async": {
+          "version": "0.6.2",
+          "resolved": "https://registry.npmjs.org/async/-/async-0.6.2.tgz",
+          "integrity": "sha1-Qf0DijgSwKi8GELs8IumPrA5K+8="
+        },
         "body-parser": {
           "version": "1.19.0",
           "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -46558,9 +46760,9 @@
       "dev": true
     },
     "async": {
-      "version": "3.2.2",
-      "resolved": "https://registry.npmjs.org/async/-/async-3.2.2.tgz",
-      "integrity": "sha512-H0E+qZaDEfx/FY4t7iLRv1W2fFI6+pyCeTw1uN20AQPiwqwM6ojPxHxdLv4z8hi2DtnW9BOckSspLucW7pIE5g=="
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.0.tgz",
+      "integrity": "sha512-TR2mEZFVOj2pLStYxLht7TyfuRzaydfpxr3k9RpHIzMgw7A64dzsdqCxH1WJyQdoe8T10nDXd9wnEigmiuHIZw=="
     },
     "async-limiter": {
       "version": "1.0.1",
diff --git a/services/chat/package.json b/services/chat/package.json
index f8b2c802cb..8b03ea0824 100644
--- a/services/chat/package.json
+++ b/services/chat/package.json
@@ -19,7 +19,7 @@
     "@overleaf/logger": "^3.1.0",
     "@overleaf/metrics": "^4.0.0",
     "@overleaf/settings": "^3.0.0",
-    "async": "^3.2.2",
+    "async": "^3.2.0",
     "body-parser": "^1.19.0",
     "express": "4.17.1",
     "mongodb": "^3.6.0"
diff --git a/services/clsi/package.json b/services/clsi/package.json
index 0835bf8a3a..33d5e56144 100644
--- a/services/clsi/package.json
+++ b/services/clsi/package.json
@@ -20,7 +20,7 @@
     "@overleaf/metrics": "^4.0.0",
     "@overleaf/o-error": "^3.4.0",
     "@overleaf/settings": "^3.0.0",
-    "async": "3.2.2",
+    "async": "3.2.0",
     "body-parser": "^1.19.0",
     "bunyan": "^1.8.15",
     "diskusage": "^1.1.3",
diff --git a/services/contacts/package.json b/services/contacts/package.json
index dc72fd9335..f44210499d 100644
--- a/services/contacts/package.json
+++ b/services/contacts/package.json
@@ -19,7 +19,7 @@
     "@overleaf/logger": "^3.1.0",
     "@overleaf/metrics": "^4.0.0",
     "@overleaf/settings": "^3.0.0",
-    "async": "^3.2.2",
+    "async": "^2.6.3",
     "body-parser": "^1.19.0",
     "bunyan": "^1.8.15",
     "express": "^4.17.1",
diff --git a/services/docstore/package.json b/services/docstore/package.json
index 0320deec1e..bfb1725f20 100644
--- a/services/docstore/package.json
+++ b/services/docstore/package.json
@@ -21,7 +21,7 @@
     "@overleaf/o-error": "^3.4.0",
     "@overleaf/object-persistor": "^1.0.1",
     "@overleaf/settings": "^3.0.0",
-    "async": "^3.2.2",
+    "async": "^2.6.3",
     "body-parser": "^1.19.0",
     "bunyan": "^1.8.15",
     "celebrate": "^13.0.4",
diff --git a/services/document-updater/package.json b/services/document-updater/package.json
index b670046d59..cd565f768b 100644
--- a/services/document-updater/package.json
+++ b/services/document-updater/package.json
@@ -21,7 +21,7 @@
     "@overleaf/o-error": "^3.4.0",
     "@overleaf/redis-wrapper": "^2.0.1",
     "@overleaf/settings": "^3.0.0",
-    "async": "^3.2.2",
+    "async": "^2.5.0",
     "body-parser": "^1.19.0",
     "bunyan": "^1.8.15",
     "diff-match-patch": "https://github.com/overleaf/diff-match-patch/archive/89805f9c671a77a263fc53461acd62aa7498f688.tar.gz",
diff --git a/services/notifications/package.json b/services/notifications/package.json
index 99c7b62283..01173f003c 100644
--- a/services/notifications/package.json
+++ b/services/notifications/package.json
@@ -21,7 +21,7 @@
     "@overleaf/logger": "^3.1.0",
     "@overleaf/metrics": "^4.0.0",
     "@overleaf/settings": "^3.0.0",
-    "async": "^3.2.2",
+    "async": "^2.6.3",
     "body-parser": "^1.19.0",
     "bunyan": "^1.8.15",
     "express": "4.17.1",
diff --git a/services/real-time/package.json b/services/real-time/package.json
index d46e5856f8..b1fc619a25 100644
--- a/services/real-time/package.json
+++ b/services/real-time/package.json
@@ -22,7 +22,7 @@
     "@overleaf/o-error": "^3.4.0",
     "@overleaf/redis-wrapper": "^2.0.0",
     "@overleaf/settings": "^3.0.0",
-    "async": "^3.2.2",
+    "async": "^0.9.0",
     "base64id": "0.1.0",
     "body-parser": "^1.19.0",
     "bunyan": "^1.8.15",
diff --git a/services/spelling/package.json b/services/spelling/package.json
index 83e883a539..34359d7c39 100644
--- a/services/spelling/package.json
+++ b/services/spelling/package.json
@@ -26,7 +26,7 @@
     "@overleaf/metrics": "^4.0.0",
     "@overleaf/o-error": "^3.4.0",
     "@overleaf/settings": "^3.0.0",
-    "async": "^3.2.2",
+    "async": "^2.6.3",
     "body-parser": "^1.19.0",
     "bunyan": "^1.8.15",
     "express": "^4.17.1",
diff --git a/services/track-changes/app/js/UpdatesManager.js b/services/track-changes/app/js/UpdatesManager.js
index df8ebff6cd..58962108cf 100644
--- a/services/track-changes/app/js/UpdatesManager.js
+++ b/services/track-changes/app/js/UpdatesManager.js
@@ -591,13 +591,11 @@ module.exports = UpdatesManager = {
             }
             // repeatedly get updates and pass them through the summariser to get an final output with user info
             return async.whilst(
-              cb =>
+              () =>
                 // console.log "checking iterator.done", iterator.done()
-                cb(
-                  null,
-                  summarizedUpdates.length < options.min_count &&
-                    !iterator.done()
-                ),
+                summarizedUpdates.length < options.min_count &&
+                !iterator.done(),
+
               cb =>
                 iterator.next(function (err, partialUpdates) {
                   if (err != null) {
@@ -653,7 +651,7 @@ module.exports = UpdatesManager = {
         const accumulatedUserIds = new Set()
 
         async.whilst(
-          cb => cb(null, !iterator.done()),
+          () => !iterator.done(),
 
           cb =>
             iterator.next((err, updatesFromASinglePack) => {
diff --git a/services/track-changes/package.json b/services/track-changes/package.json
index cc90cb4464..0d972f4bdd 100644
--- a/services/track-changes/package.json
+++ b/services/track-changes/package.json
@@ -21,7 +21,7 @@
     "@overleaf/o-error": "^3.4.0",
     "@overleaf/redis-wrapper": "^2.0.0",
     "@overleaf/settings": "^3.0.0",
-    "async": "^3.2.2",
+    "async": "^2.6.3",
     "aws-sdk": "^2.643.0",
     "body-parser": "^1.19.0",
     "bson": "^1.1.5",
diff --git a/services/web/app/src/Features/Exports/ExportsHandler.js b/services/web/app/src/Features/Exports/ExportsHandler.js
index 71710268e1..8e738a73b9 100644
--- a/services/web/app/src/Features/Exports/ExportsHandler.js
+++ b/services/web/app/src/Features/Exports/ExportsHandler.js
@@ -72,7 +72,7 @@ module.exports = ExportsHandler = {
       // TODO: when we update async, signature will change from (cb, results) to (results, cb)
       rootDoc: [
         'project',
-        (results, cb) =>
+        (cb, results) =>
           ProjectRootDocManager.ensureRootDocumentIsValid(
             project_id,
             function (error) {
diff --git a/services/web/app/src/Features/Project/ProjectController.js b/services/web/app/src/Features/Project/ProjectController.js
index 31288de8e0..c24a7a2a97 100644
--- a/services/web/app/src/Features/Project/ProjectController.js
+++ b/services/web/app/src/Features/Project/ProjectController.js
@@ -778,7 +778,7 @@ const ProjectController = {
         },
         brandVariation: [
           'project',
-          (results, cb) => {
+          (cb, results) => {
             if (
               (results.project != null
                 ? results.project.brandVariationId
diff --git a/services/web/app/src/Features/Project/ProjectRootDocManager.js b/services/web/app/src/Features/Project/ProjectRootDocManager.js
index 3e984276d2..7e320e8266 100644
--- a/services/web/app/src/Features/Project/ProjectRootDocManager.js
+++ b/services/web/app/src/Features/Project/ProjectRootDocManager.js
@@ -95,7 +95,7 @@ module.exports = ProjectRootDocManager = {
             let doc = null
 
             return async.until(
-              cb => cb(null, doc != null || files.length === 0),
+              () => doc != null || files.length === 0,
               function (cb) {
                 const file = files.shift()
                 return fs.readFile(
diff --git a/services/web/app/src/Features/Subscription/SubscriptionViewModelBuilder.js b/services/web/app/src/Features/Subscription/SubscriptionViewModelBuilder.js
index b30052bff5..dfc91aaee8 100644
--- a/services/web/app/src/Features/Subscription/SubscriptionViewModelBuilder.js
+++ b/services/web/app/src/Features/Subscription/SubscriptionViewModelBuilder.js
@@ -62,7 +62,7 @@ function buildUsersSubscriptionViewModel(user, callback) {
       },
       recurlySubscription: [
         'personalSubscription',
-        ({ personalSubscription }, cb) => {
+        (cb, { personalSubscription }) => {
           if (
             personalSubscription == null ||
             personalSubscription.recurlySubscription_id == null ||
@@ -79,7 +79,7 @@ function buildUsersSubscriptionViewModel(user, callback) {
       ],
       recurlyCoupons: [
         'recurlySubscription',
-        ({ recurlySubscription }, cb) => {
+        (cb, { recurlySubscription }) => {
           if (!recurlySubscription) {
             return cb(null, null)
           }
@@ -89,7 +89,7 @@ function buildUsersSubscriptionViewModel(user, callback) {
       ],
       plan: [
         'personalSubscription',
-        ({ personalSubscription }, cb) => {
+        (cb, { personalSubscription }) => {
           if (personalSubscription == null) {
             return cb()
           }
diff --git a/services/web/package.json b/services/web/package.json
index b061090a7e..a64735bd61 100644
--- a/services/web/package.json
+++ b/services/web/package.json
@@ -82,7 +82,7 @@
     "angular": "~1.8.0",
     "angular-sanitize": "~1.8.0",
     "archiver": "^5.3.0",
-    "async": "3.2.2",
+    "async": "0.6.2",
     "backbone": "^1.3.3",
     "basic-auth": "^2.0.1",
     "bcrypt": "^5.0.0",
diff --git a/services/web/test/unit/src/User/UserSessionsManagerTests.js b/services/web/test/unit/src/User/UserSessionsManagerTests.js
index fa42300c56..7170958caf 100644
--- a/services/web/test/unit/src/User/UserSessionsManagerTests.js
+++ b/services/web/test/unit/src/User/UserSessionsManagerTests.js
@@ -89,7 +89,7 @@ describe('UserSessionsManager', function () {
 
     it('should not produce an error', function (done) {
       return this.call(err => {
-        expect(err).to.not.exist
+        expect(err).to.not.be.instanceof(Error)
         return done()
       })
     })
@@ -144,7 +144,8 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call(err => {
-          expect(err).to.not.exist
+          expect(err).to.not.be.instanceof(Error)
+          expect(err).to.equal(null)
           return done()
         })
       })
@@ -180,7 +181,8 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call(err => {
-          expect(err).to.not.exist
+          expect(err).to.not.be.instanceof(Error)
+          expect(err).to.equal(null)
           return done()
         })
       })
@@ -225,7 +227,8 @@ describe('UserSessionsManager', function () {
 
     it('should not produce an error', function (done) {
       return this.call(err => {
-        expect(err).to.not.exist
+        expect(err).to.not.be.instanceof(Error)
+        expect(err).to.equal(undefined)
         return done()
       })
     })
@@ -280,7 +283,8 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call(err => {
-          expect(err).to.not.exist
+          expect(err).to.not.be.instanceof(Error)
+          expect(err).to.equal(null)
           return done()
         })
       })
@@ -316,7 +320,8 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call(err => {
-          expect(err).to.not.exist
+          expect(err).to.not.be.instanceof(Error)
+          expect(err).to.equal(null)
           return done()
         })
       })
@@ -358,7 +363,8 @@ describe('UserSessionsManager', function () {
 
     it('should not produce an error', function (done) {
       return this.call(err => {
-        expect(err).to.not.exist
+        expect(err).to.not.be.instanceof(Error)
+        expect(err).to.equal(null)
         return done()
       })
     })
@@ -401,7 +407,8 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call(err => {
-          expect(err).to.not.exist
+          expect(err).to.not.be.instanceof(Error)
+          expect(err).to.equal(null)
           return done()
         })
       })
@@ -467,7 +474,8 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call(err => {
-          expect(err).to.not.exist
+          expect(err).to.not.be.instanceof(Error)
+          expect(err).to.equal(null)
           return done()
         })
       })
@@ -489,7 +497,8 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call(err => {
-          expect(err).to.not.exist
+          expect(err).to.not.be.instanceof(Error)
+          expect(err).to.equal(null)
           return done()
         })
       })
@@ -515,7 +524,8 @@ describe('UserSessionsManager', function () {
 
     it('should not produce an error', function (done) {
       return this.call(err => {
-        expect(err).to.not.exist
+        expect(err).to.not.be.instanceof(Error)
+        expect(err).to.equal(null)
         return done()
       })
     })
@@ -549,7 +559,8 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call(err => {
-          expect(err).to.not.exist
+          expect(err).to.not.be.instanceof(Error)
+          expect(err).to.equal(null)
           return done()
         })
       })
@@ -587,7 +598,7 @@ describe('UserSessionsManager', function () {
 
     it('should not produce an error', function (done) {
       return this.call((err, sessions) => {
-        expect(err).to.not.exist
+        expect(err).to.equal(null)
         return done()
       })
     })
@@ -624,7 +635,7 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call((err, sessions) => {
-          expect(err).to.not.exist
+          expect(err).to.equal(null)
           return done()
         })
       })
@@ -702,7 +713,8 @@ describe('UserSessionsManager', function () {
 
     it('should not produce an error', function (done) {
       return this.call(err => {
-        expect(err).to.not.exist
+        expect(err).to.not.be.instanceof(Error)
+        expect(err).to.equal(undefined)
         return done()
       })
     })
@@ -724,7 +736,8 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call(err => {
-          expect(err).to.not.exist
+          expect(err).to.not.be.instanceof(Error)
+          expect(err).to.equal(undefined)
           return done()
         })
       })
@@ -749,7 +762,8 @@ describe('UserSessionsManager', function () {
 
       it('should not produce an error', function (done) {
         return this.call(err => {
-          expect(err).to.not.exist
+          expect(err).to.not.be.instanceof(Error)
+          expect(err).to.equal(null)
           return done()
         })
       })