diff --git a/requirements.txt b/requirements.txt
index 7b10a67..a32759e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 attrs==17.4.0
 -e git+git@github.com:digitalmensch/contrapy.git@c360945e53c8c6eb6eae85a1c6bb1fbfa1e79724#egg=contrapy
 pluggy==0.6.0
-py==1.5.2
+py==1.5.3
 pytest==3.5.0
 six==1.11.0