diff --git a/requirements.txt b/requirements.txt
index ada1e80..5bb9074 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ google-api-python-client==1.6.5
 google-auth==1.4.1
 google-auth-httplib2==0.0.3
 google-auth-oauthlib==0.2.0
-httplib2==0.10.3
+httplib2==0.19.0
 idna==2.6
 oauth2client==3.0.0
 oauthlib==2.0.6