diff --git a/tests_requirements.txt b/tests_requirements.txt
index 09caabb..e583e05 100644
--- a/tests_requirements.txt
+++ b/tests_requirements.txt
@@ -4,7 +4,7 @@ imagesize==0.7.1
 mock==2.0.0
 pbr==3.1.1
 pluggy==0.5.2
-py==1.4.34
+py==1.10.0
 pycodestyle==2.3.1
 pytest==3.2.3
 pytest-cov==2.5.1