diff --git a/services/chat/package-lock.json b/services/chat/package-lock.json
index 27d04f41db..6e8101aa3e 100644
--- a/services/chat/package-lock.json
+++ b/services/chat/package-lock.json
@@ -47,6 +47,7 @@
       "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",
@@ -88,6 +89,11 @@
           "resolved": "https://registry.npmjs.org/@google-cloud/promisify/-/promisify-0.4.0.tgz",
           "integrity": "sha512-4yAHDC52TEMCNcMzVC8WlqnKKKq+Ssi2lXoUg9zWWkZ6U6tq9ZBRYLHHCRdfU+EU9YJsVmivwGcKYCjRGjnf4Q=="
         },
+        "acorn": {
+          "version": "6.4.0",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.0.tgz",
+          "integrity": "sha512-gac8OEcQ2Li1dxIEWGZzsp2BitJxwkwcOm0zHAJLcPJaVvm58FRnk6RkuLRpU1EujipU2ZFODv2P9DLMfnV8mw=="
+        },
         "agent-base": {
           "version": "4.3.0",
           "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
diff --git a/services/chat/package.json b/services/chat/package.json
index de2c55b19e..cab4bcd624 100644
--- a/services/chat/package.json
+++ b/services/chat/package.json
@@ -42,7 +42,7 @@
     "eslint-plugin-prettier": "^3.1.2",
     "eslint-plugin-promise": "^4.2.1",
     "eslint-plugin-standard": "^4.0.1",
-    "mocha": "^4.1.0",
+    "mocha": "^7.1.0",
     "nodemon": "^2.0.2",
     "prettier-eslint-cli": "^5.0.0",
     "sandboxed-module": "^2.0.3",