diff --git a/requirements.txt b/requirements.txt
index d02c5dc..5e24576 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,6 +4,6 @@ attrs==18.1.0
 click==6.7
 more-itertools==4.3.0
 pluggy==0.7.1
-py==1.5.4
+py==1.11.0
 pytest==3.7.1
 six==1.11.0
diff --git a/setup.py b/setup.py
index 7349383..ebd9fdb 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
                       'click==6.7',
                       'more-itertools==4.3.0',
                       'pluggy==0.7.1',
-                      'py==1.5.4',
+                      'py==1.11.0',
                       'pytest==3.7.1',
                       'six==1.11.0'
                      ],