diff --git a/package.json b/package.json
index 7b3d5e5..53d88c9 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "safe-buffer": "^5.0.1"
   },
   "devDependencies": {
-    "base64url": "^2.0.0",
+    "base64url": "^3.0.1",
     "jwk-to-pem": "^2.0.1",
     "semver": "4.3.6",
     "tap": "6.2.0"