diff --git a/package.json b/package.json
index e0929f133..26f0773e7 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "arrify": "^2.0.0",
     "concat-stream": "^2.0.0",
     "extend": "^3.0.1",
-    "google-auth-library": "^3.0.0",
+    "google-auth-library": "^4.0.0",
     "google-gax": "^0.26.0",
     "is": "^3.2.1",
     "lodash.merge": "^4.6.1",