diff --git a/requirements.txt b/requirements.txt
index c8c4dc0..907bda0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ google-auth-httplib2==0.0.3
 google-auth-oauthlib==0.4.1
 googleapis-common-protos==1.51.0
 gunicorn==20.0.4
-httplib2==0.18.0
+httplib2==0.19.0
 idna==2.9
 importlib-metadata==1.6.0
 kombu==4.6.8