diff --git a/package.json b/package.json
index 288e4be6a..12292b9e9 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "c8": "^5.0.4",
     "codecov": "^3.0.4",
     "espower-typescript": "^9.0.0",
-    "google-gax": "^1.6.0",
+    "google-gax": "^1.6.3",
     "gts": "^1.0.0",
     "intelli-espower-loader": "^1.0.1",
     "mocha": "^6.0.0",