diff --git a/package.json b/package.json
index 980634d..93acd94 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "test": "node test.js"
   },
   "dependencies": {
-    "@probot/adapter-aws-lambda-serverless": "^3.0.0"
+    "@probot/adapter-aws-lambda-serverless": "^4.0.0"
   },
   "repository": "github:probot/example-aws-lambda-serverless",
   "keywords": [],