diff --git a/appengine/websockets/package.json b/appengine/websockets/package.json
index 86f188f73a..f19d235855 100644
--- a/appengine/websockets/package.json
+++ b/appengine/websockets/package.json
@@ -24,7 +24,7 @@
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "^3.3.0",
     "eslint": "^6.0.0",
-    "eslint-config-prettier": "^5.0.0",
+    "eslint-config-prettier": "^6.0.0",
     "eslint-plugin-node": "^9.0.0",
     "eslint-plugin-prettier": "^3.0.0",
     "mocha": "^6.0.0",
diff --git a/package.json b/package.json
index e9289f294e..0ff087def0 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "^3.3.0",
     "eslint": "^6.0.0",
-    "eslint-config-prettier": "^5.0.0",
+    "eslint-config-prettier": "^6.0.0",
     "eslint-plugin-node": "^9.0.0",
     "eslint-plugin-prettier": "^3.1.0",
     "eslint-plugin-promise": "^4.1.1",