diff --git a/requirements.txt b/requirements.txt
index 5afe6d4..fd2ac42 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ mccabe==0.6.1
 msgpack-python==0.5.4
 nose==1.3.7
 pluggy==0.6.0
-py==1.5.2
+py==1.10.0
 pycodestyle==2.3.1
 pyflakes==1.6.0
 pylint==1.8.2