diff --git a/requirements-dev.txt b/requirements-dev.txt
index ea80646..775674c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -10,7 +10,7 @@ idna==2.6
 packaging==16.8
 pbr==3.1.1
 psutil==5.4.0
-py==1.4.34
+py==1.10.0
 pyparsing==2.2.0
 pytest-cov==2.5.1
 pytest==3.2.3