diff --git a/functions/package-lock.json b/functions/package-lock.json
index b042418..1f97077 100644
--- a/functions/package-lock.json
+++ b/functions/package-lock.json
@@ -1291,9 +1291,9 @@
       }
     },
     "eslint-plugin-promise": {
-      "version": "3.8.0",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-promise/-/eslint-plugin-promise-3.8.0.tgz",
-      "integrity": "sha512-JiFL9UFR15NKpHyGii1ZcvmtIqa3UTwiDAGb8atSffe43qJ3+1czVGN6UtkklpcJ2DVnqvTMzEKRaJdBkAL2aQ==",
+      "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 577d265..96150fa 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -19,7 +19,7 @@
   },
   "devDependencies": {
     "eslint": "4.19.1",
-    "eslint-plugin-promise": "3.8.0"
+    "eslint-plugin-promise": "4.2.1"
   },
   "private": true,
   "engines": {