diff --git a/services/chat/package-lock.json b/services/chat/package-lock.json
index fc5b393867..27d04f41db 100644
--- a/services/chat/package-lock.json
+++ b/services/chat/package-lock.json
@@ -47,7 +47,6 @@
       "requires": {
         "@google-cloud/common": "^0.32.0",
         "@sindresorhus/is": "^0.15.0",
-        "acorn": "^6.0.0",
         "coffeescript": "^2.0.0",
         "console-log-level": "^1.4.0",
         "extend": "^3.0.1",
@@ -991,9 +990,10 @@
       }
     },
     "acorn": {
-      "version": "6.1.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
-      "integrity": "sha1-fSWuBbuK0fm2mRCOEJTs14hK3B8="
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
+      "integrity": "sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==",
+      "dev": true
     },
     "acorn-jsx": {
       "version": "5.2.0",
@@ -1025,29 +1025,15 @@
       }
     },
     "ajv": {
-      "version": "5.5.2",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
-      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
+      "version": "6.12.0",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz",
+      "integrity": "sha512-D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==",
       "dev": true,
       "requires": {
-        "co": "^4.6.0",
-        "fast-deep-equal": "^1.0.0",
+        "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
-        "json-schema-traverse": "^0.3.0"
-      },
-      "dependencies": {
-        "fast-deep-equal": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
-          "integrity": "sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=",
-          "dev": true
-        },
-        "json-schema-traverse": {
-          "version": "0.3.1",
-          "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz",
-          "integrity": "sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=",
-          "dev": true
-        }
+        "json-schema-traverse": "^0.4.1",
+        "uri-js": "^4.2.2"
       }
     },
     "ansi-align": {
@@ -1492,12 +1478,6 @@
         }
       }
     },
-    "co": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
-      "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
-      "dev": true
-    },
     "coffee-script": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/coffee-script/-/coffee-script-1.6.0.tgz",
@@ -4731,6 +4711,14 @@
             "acorn": "^6.0.7",
             "acorn-jsx": "^5.0.0",
             "eslint-visitor-keys": "^1.0.0"
+          },
+          "dependencies": {
+            "acorn": {
+              "version": "6.4.0",
+              "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.0.tgz",
+              "integrity": "sha512-gac8OEcQ2Li1dxIEWGZzsp2BitJxwkwcOm0zHAJLcPJaVvm58FRnk6RkuLRpU1EujipU2ZFODv2P9DLMfnV8mw==",
+              "dev": true
+            }
           }
         },
         "fast-deep-equal": {
@@ -5004,6 +4992,14 @@
             "acorn": "^6.0.7",
             "acorn-jsx": "^5.0.0",
             "eslint-visitor-keys": "^1.0.0"
+          },
+          "dependencies": {
+            "acorn": {
+              "version": "6.4.0",
+              "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.0.tgz",
+              "integrity": "sha512-gac8OEcQ2Li1dxIEWGZzsp2BitJxwkwcOm0zHAJLcPJaVvm58FRnk6RkuLRpU1EujipU2ZFODv2P9DLMfnV8mw==",
+              "dev": true
+            }
           }
         },
         "fast-deep-equal": {
diff --git a/services/chat/package.json b/services/chat/package.json
index 0217141b09..de2c55b19e 100644
--- a/services/chat/package.json
+++ b/services/chat/package.json
@@ -28,7 +28,7 @@
   },
   "devDependencies": {
     "acorn": "^7.1.1",
-    "ajv": "^5.5.2",
+    "ajv": "^6.12.0",
     "bunyan": "^1.8.12",
     "chai": "^4.2.0",
     "eslint": "^6.8.0",