diff --git a/requirements.txt b/requirements.txt
index 2fe1ec3..6e7ce96 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ chardet==3.0.4
 google-api-python-client==1.7.8
 google-auth==1.6.3
 google-auth-httplib2==0.0.3
-httplib2==0.12.1
+httplib2==0.19.0
 idna==2.8
 pyasn1==0.4.5
 pyasn1-modules==0.2.4