diff --git a/requirements.txt b/requirements.txt
index c5c2249f..fd1da1d5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ mccabe==0.6.1
 mock==2.0.0
 pbr==3.1.1
 pluggy==0.6.0
-py==1.5.2
+py==1.10.0
 pycodestyle==2.3.1
 pyflakes==1.6.0
 pytest==3.4.0