diff --git a/requirements.txt b/requirements.txt
index 32fb901..3d6d94d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ curtsies==0.3.0
 greenlet==0.4.13
 idna==2.6
 pluggy==0.6.0
-py==1.5.2
+py==1.10.0
 Pygments==2.2.0
 pytest==3.4.2
 requests==2.18.4