diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index eff2d98..fbc31d8
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ cryptography==1.0.2
 enum34==1.0.4
 github3.py==0.9.4
 gspread==0.2.5
-httplib2==0.9.2
+httplib2==0.19.0
 idna==2.0
 ipaddress==1.0.14
 ndg-httpsclient==0.4.0