diff --git a/requirements.txt b/requirements.txt
index 3d57268..6aa3e65 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ future==0.17.1
 google-api-python-client==1.7.8
 google-auth==1.6.2
 google-auth-httplib2==0.0.3
-httplib2==0.18.0
+httplib2==0.19.0
 idna==2.8
 mapq==0.3
 oauth2client==4.1.3