diff --git a/requirements.txt b/requirements.txt
index ba9603d..c41d1af 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ lint==1.2.1
 mccabe==0.6.1
 more-itertools==4.3.0
 pluggy==0.7.1
-py==1.5.4
+py==1.10.0
 pycodestyle==2.4.0
 pylint==2.1.1
 pytest==3.7.1