diff --git a/setup.py b/setup.py
index 084fb14..74d2857 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,7 @@
         "amazon": ["boto3 >= 1.11.9, <2.0.0"],
         "google": [
             "grpcio >= 1.32.0, <2.0.0",
-            "google-cloud-storage >= 1.31.0, < 3.0.0",
+            "google-cloud-storage >= 1.31.0, < 4.0.0",
         ],
         "dev": [
             "twine",