diff --git a/wordcloud_demo/requirements.txt b/wordcloud_demo/requirements.txt
index 8bc10c9..c8c419d 100644
--- a/wordcloud_demo/requirements.txt
+++ b/wordcloud_demo/requirements.txt
@@ -20,7 +20,7 @@ entrypoints==0.2.3
 Flask==0.12.2
 future==0.16.0
 html5lib==1.0.1
-httplib2==0.10.3
+httplib2==0.18.0
 idna==2.6
 imagesize==0.7.1
 ipykernel==4.7.0