diff --git a/package.json b/package.json
index 1f1990aa..193c0a5f 100644
--- a/package.json
+++ b/package.json
@@ -72,7 +72,7 @@
     "atob": "2.1.2",
     "es6-promise": "^4.2.5",
     "events": "^3.0.0",
-    "idtoken-verifier": "^1.2.0",
+    "idtoken-verifier": "^2.1.1",
     "jsonwebtoken": "^8.3.0",
     "oauth-signature": "^1.3.1",
     "object-assign": "^4.1.1",