diff --git a/requirements.txt b/requirements.txt
index 53db3dc..dae836b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ google-api-core==1.14.3
 google-auth==1.6.3
 google-cloud-core==1.0.3
 google-cloud-firestore==1.5.0
-google-cloud-storage==1.20.0
+google-cloud-storage==1.21.0
 google-resumable-media==0.4.1
 googleapis-common-protos==1.6.0
 grpcio==1.24.3