diff --git a/endpoints/getting-started-grpc/package.json b/endpoints/getting-started-grpc/package.json
index 35b696baa1..9ed8b2956d 100644
--- a/endpoints/getting-started-grpc/package.json
+++ b/endpoints/getting-started-grpc/package.json
@@ -17,7 +17,7 @@
     "test": "repo-tools test run --cmd ava -- -T 1m --verbose system-test/*.test.js"
   },
   "dependencies": {
-    "google-auth-library": "^2.0.0",
+    "google-auth-library": "^3.0.0",
     "grpc": "1.17.0",
     "jsonwebtoken": "^8.2.0",
     "yargs": "12.0.5"
diff --git a/functions/billing/package.json b/functions/billing/package.json
index f3a05227eb..158a972cd8 100644
--- a/functions/billing/package.json
+++ b/functions/billing/package.json
@@ -12,7 +12,7 @@
   "author": "Ace Nassri <anassri@google.com>",
   "license": "Apache-2.0",
   "dependencies": {
-    "google-auth-library": "^2.0.0",
+    "google-auth-library": "^3.0.0",
     "googleapis": "^36.0.0",
     "slack": "^11.0.1"
   },