diff --git a/requirements.txt b/requirements.txt
index 57720e6..f7aad4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ google-api-python-client==1.7.8
 google-auth==1.6.2
 google-auth-httplib2==0.0.3
 google-auth-oauthlib==0.2.0
-httplib2==0.12.0
+httplib2==0.19.0
 idna==2.8
 oauth2==1.9.0.post1
 oauth2client==4.1.3