diff --git a/functions/package-lock.json b/functions/package-lock.json
index affbd71..f6d83af 100644
--- a/functions/package-lock.json
+++ b/functions/package-lock.json
@@ -1113,9 +1113,9 @@
       }
     },
     "eslint-plugin-promise": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-promise/-/eslint-plugin-promise-4.1.1.tgz",
-      "integrity": "sha512-faAHw7uzlNPy7b45J1guyjazw28M+7gJokKUjC5JSFoYfUEyy6Gw/i7YQvmv2Yk00sUjWcmzXQLpU1Ki/C2IZQ==",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-promise/-/eslint-plugin-promise-4.2.1.tgz",
+      "integrity": "sha512-VoM09vT7bfA7D+upt+FjeBO5eHIJQBUWki1aPvB+vbNiHS3+oGIJGIeyBtKQTME6UPXXy3vV07OL1tHd3ANuDw==",
       "dev": true
     },
     "eslint-scope": {
diff --git a/functions/package.json b/functions/package.json
index 3d3a505..147d5bf 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -19,7 +19,7 @@
   },
   "devDependencies": {
     "eslint": "^5.12.0",
-    "eslint-plugin-promise": "^4.0.1",
+    "eslint-plugin-promise": "^4.2.1",
     "firebase-functions-test": "^0.1.6"
   },
   "private": true