diff --git a/requirements.txt b/requirements.txt
index d169468..0b6f81f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ google-cloud-storage==1.23.0
 google-resumable-media==0.5.0
 googleapis-common-protos==1.6.0
 grpcio==1.26.0
-httplib2==0.15.0
+httplib2==0.18.0
 idna==2.8
 importlib-metadata==1.4.0
 isort==4.3.21