diff --git a/setup.py b/setup.py
index f667e4b1..bfe42100 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
 
 setuptools.setup(
     name="googleapis-storage-testbench",
-    version="0.39.0",
+    version="0.40.0",
     author="Google LLC",
     author_email="googleapis-packages@google.com",
     description="A testbench for Google Cloud Storage client libraries",