diff --git a/services/chat/package-lock.json b/services/chat/package-lock.json
index 8b2c4a4a76..fc5b393867 100644
--- a/services/chat/package-lock.json
+++ b/services/chat/package-lock.json
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+    "@sinonjs/fake-timers": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-6.0.0.tgz",
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+      "requires": {
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-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-4.0.1.tgz",
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+      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-5.0.1.tgz",
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       "dev": true,
       "requires": {
         "@sinonjs/commons": "^1",
-        "@sinonjs/samsam": "^4.2.0"
+        "@sinonjs/samsam": "^5.0.2"
       }
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     "@sinonjs/samsam": {
-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-4.2.2.tgz",
-      "integrity": "sha512-z9o4LZUzSD9Hl22zV38aXNykgFeVj8acqfFabCY6FY83n/6s/XwNJyYYldz6/9lBJanpno9h+oL6HTISkviweA==",
+      "version": "5.0.3",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-5.0.3.tgz",
+      "integrity": "sha512-QucHkc2uMJ0pFGjJUDP3F9dq5dx8QIaqISl9QgwLOh6P9yv877uONPGXh/OH/0zmM3tW1JjuJltAZV2l7zU+uQ==",
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@@ -1153,9 +1162,9 @@
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-      "resolved": "https://registry.npmjs.org/async/-/async-0.2.9.tgz",
-      "integrity": "sha1-32MGD789Myhqdqr21Vophtn/hhk="
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.0.tgz",
+      "integrity": "sha512-TR2mEZFVOj2pLStYxLht7TyfuRzaydfpxr3k9RpHIzMgw7A64dzsdqCxH1WJyQdoe8T10nDXd9wnEigmiuHIZw=="
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@@ -3404,9 +3413,9 @@
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-      "resolved": "https://registry.npmjs.org/just-extend/-/just-extend-4.0.2.tgz",
-      "integrity": "sha512-FrLwOgm+iXrPV+5zDU6Jqu4gCRXbWEQg2O3SKONsWE4w7AXFRkryS53bpWdaL9cNol+AmR3AEYz6kn+o0fCPnw==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/just-extend/-/just-extend-4.1.0.tgz",
+      "integrity": "sha512-ApcjaOdVTJ7y4r08xI5wIqpvwS48Q0PBG4DJROcEkH1f8MdAiNFyFxz3xoL0LWAVwjrwPYZdVHHxhRHcx/uGLA==",
       "dev": true
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@@ -3632,15 +3641,6 @@
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-      "resolved": "https://registry.npmjs.org/lolex/-/lolex-5.1.2.tgz",
-      "integrity": "sha512-h4hmjAvHTmd+25JSwrtTIuwbKdwg5NzZVRMLn9saij4SZaepCrTCxPr35H/3bjwfMJtN+t3CX8672UIkglz28A==",
-      "dev": true,
-      "requires": {
-        "@sinonjs/commons": "^1.7.0"
-      }
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       "resolved": "https://registry.npmjs.org/long/-/long-4.0.0.tgz",
@@ -4209,16 +4209,15 @@
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-      "resolved": "https://registry.npmjs.org/nise/-/nise-3.0.1.tgz",
-      "integrity": "sha512-fYcH9y0drBGSoi88kvhpbZEsenX58Yr+wOJ4/Mi1K4cy+iGP/a73gNoyNhu5E9QxPdgTlVChfIaAlnyOy/gHUA==",
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/nise/-/nise-4.0.3.tgz",
+      "integrity": "sha512-EGlhjm7/4KvmmE6B/UFsKh7eHykRl9VH+au8dduHLCyWUO/hr7+N+WtTvDUwc9zHuM1IaIJs/0lQ6Ag1jDkQSg==",
       "dev": true,
       "requires": {
         "@sinonjs/commons": "^1.7.0",
-        "@sinonjs/formatio": "^4.0.1",
+        "@sinonjs/fake-timers": "^6.0.0",
         "@sinonjs/text-encoding": "^0.7.1",
         "just-extend": "^4.0.2",
-        "lolex": "^5.0.1",
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@@ -5671,17 +5670,17 @@
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-      "resolved": "https://registry.npmjs.org/sinon/-/sinon-8.1.1.tgz",
-      "integrity": "sha512-E+tWr3acRdoe1nXbHMu86SSqA1WGM7Yw3jZRLvlCMnXwTHP8lgFFVn5BnKnF26uc5SfZ3D7pA9sN7S3Y2jG4Ew==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-9.0.0.tgz",
+      "integrity": "sha512-c4bREcvuK5VuEGyMW/Oim9I3Rq49Vzb0aMdxouFaA44QCFpilc5LJOugrX+mkrvikbqCimxuK+4cnHVNnLR41g==",
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-        "@sinonjs/formatio": "^4.0.1",
-        "@sinonjs/samsam": "^4.2.2",
+        "@sinonjs/fake-timers": "^6.0.0",
+        "@sinonjs/formatio": "^5.0.0",
+        "@sinonjs/samsam": "^5.0.1",
         "diff": "^4.0.2",
-        "lolex": "^5.1.2",
-        "nise": "^3.0.1",
+        "nise": "^4.0.1",
         "supports-color": "^7.1.0"
       },
       "dependencies": {
diff --git a/services/chat/package.json b/services/chat/package.json
index 19770486b7..0217141b09 100644
--- a/services/chat/package.json
+++ b/services/chat/package.json
@@ -18,7 +18,7 @@
     "format:fix": "node_modules/.bin/prettier-eslint $PWD'/**/*.js' --write"
   },
   "dependencies": {
-    "async": "0.2.9",
+    "async": "3.2.0",
     "express": "3.3.1",
     "logger-sharelatex": "^1.9.0",
     "metrics-sharelatex": "^2.5.0",
@@ -27,7 +27,7 @@
     "settings-sharelatex": "^1.1.0"
   },
   "devDependencies": {
-    "acorn": "^6.1.1",
+    "acorn": "^7.1.1",
     "ajv": "^5.5.2",
     "bunyan": "^1.8.12",
     "chai": "^4.2.0",
@@ -46,7 +46,7 @@
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     "prettier-eslint-cli": "^5.0.0",
     "sandboxed-module": "^2.0.3",
-    "sinon": "^8.1.1",
+    "sinon": "^9.0.0",
     "timekeeper": "^2.2.0"
   }
 }