diff --git a/samples/package.json b/samples/package.json
index e248078c..00b80b6c 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -14,7 +14,7 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@google-cloud/storage": "^6.0.0",
-    "@googleapis/iam": "^3.0.0",
+    "@googleapis/iam": "^4.0.0",
     "google-auth-library": "^8.7.0",
     "node-fetch": "^2.3.0",
     "opn": "^5.3.0",