diff --git a/requirements.txt b/requirements.txt
index 57fd8fc..7dc4ca7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ mccabe==0.5.2
 packaging==16.8
 pkginfo==1.4.1
 pluggy==0.4.0
-py==1.4.31
+py==1.10.0
 pycodestyle==2.2.0
 pyflakes==1.3.0
 pyparsing==2.2.0