diff --git a/requirements.txt b/requirements.txt
index f65e319..7a56ab8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -50,7 +50,7 @@ gunicorn==19.8.1
 hashID==3.1.4
 html5lib==1.0.1
 htmlmin==0.1.12
-httplib2==0.9.2
+httplib2==0.18.0
 icalendar==4.0.0
 idna==2.6
 # iotop==0.6