diff --git a/requirements.txt b/requirements.txt
index ff59290..7ca22ef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ geopy==1.14.0
 google-api-python-client==1.7.3
 google-auth==1.5.0
 google-auth-httplib2==0.0.3
-httplib2==0.11.3
+httplib2==0.18.0
 idna==2.7
 ipython==6.4.0
 ipython-genutils==0.2.0