diff --git a/requirements.txt b/requirements.txt
index 429b8f4..a5d16e6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ chardet==3.0.4
 google-api-python-client==1.7.11
 google-auth==1.6.3
 google-auth-httplib2==0.0.3
-httplib2==0.18.0
+httplib2==0.19.0
 idna==2.8
 oauth2client==4.1.3
 pkg-resources==0.0.0