diff --git a/requirements.txt b/requirements.txt
index 0dcdfb3..28a9266 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ google-auth-httplib2==0.0.3
 google-auth-oauthlib==0.4.1
 googleapis-common-protos==1.51.0
 gunicorn==20.0.4
-httplib2==0.17.3
+httplib2==0.18.0
 idna==2.9
 jmespath==0.10.0
 oauth2client==4.1.3