diff --git a/package.json b/package.json
index 04c465ba..e3259453 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "@google-cloud/common": "^0.32.0",
     "@google-cloud/paginator": "^0.2.0",
     "@google-cloud/projectify": "^0.3.0",
-    "@google-cloud/promisify": "^0.4.0",
+    "@google-cloud/promisify": "^1.0.0",
     "arrify": "^1.0.1",
     "async": "^2.6.1",
     "create-error-class": "^3.0.2",