diff --git a/requirements-dev.txt b/requirements-dev.txt
index a9084a9..fcbffde 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,7 +3,7 @@
 
 # Testing
 pytest==3.0.6
-py==1.4.32
+py==1.8.0
 mock==2.0.0
 tox==3.9.0