diff --git a/docs/requirements.txt b/docs/requirements.txt
index 3d687e5..5d77551 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -11,7 +11,7 @@ MarkupSafe==0.23
 pathtools==0.1.2
 pluggy==0.3.1
 port-for==0.3.1
-py==1.4.31
+py==1.10.0
 Pygments==2.1.3
 pytz==2015.7
 PyYAML==3.11