diff --git a/packages/google-cloud-oslogin/package.json b/packages/google-cloud-oslogin/package.json
index f669a37515d..3ee2812bafb 100644
--- a/packages/google-cloud-oslogin/package.json
+++ b/packages/google-cloud-oslogin/package.json
@@ -64,7 +64,7 @@
     "intelli-espower-loader": "^1.0.1",
     "jsdoc": "^3.5.5",
     "mocha": "^5.0.0",
-    "nyc": "^11.4.1",
+    "nyc": "^12.0.2",
     "power-assert": "^1.4.4",
     "prettier": "^1.9.2",
     "through2": "^2.0.3"