diff --git a/requirements.txt b/requirements.txt
index 8373096..0850ace 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ docutils==0.12
 imagesize==0.7.1
 Jinja2==2.8
 MarkupSafe==0.23
-py==1.4.31
+py==1.10.0
 Pygments==2.1.3
 pytest==3.0.4
 pytz==2016.7