diff --git a/package.json b/package.json
index cb08e32e2..72588280f 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "arrify": "^2.0.1",
     "concat-stream": "^2.0.0",
     "extend": "^3.0.2",
-    "google-auth-library": "^4.0.0",
+    "google-auth-library": "^5.0.0",
     "google-gax": "^1.0.0",
     "is": "^3.3.0",
     "split-array-stream": "^2.0.0",