diff --git a/requirements-dev.txt b/requirements-dev.txt
index ddc9453..4a2bab5 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 -r requirements.txt
 mock==1.0.1
 pip-tools==0.3.4
-py==1.4.15
+py==1.10.0
 pytest==2.3.5