diff --git a/samples/package.json b/samples/package.json
index a34f2bb8d..bcdf5c2b0 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -20,7 +20,7 @@
   },
   "devDependencies": {
     "@google-cloud/functions-framework": "^3.0.0",
-    "chai": "^4.2.0",
+    "chai": "^5.0.0",
     "mocha": "^8.0.0",
     "snap-shot-it": "^7.9.1",
     "request": "^2.88.0",