diff --git a/requirements-dev.txt b/requirements-dev.txt
index 7ed10d9..7da7eb3 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -13,7 +13,7 @@ pexpect==4.2.1
 pickleshare==0.7.4
 prompt-toolkit==1.0.13
 ptyprocess==0.5.1
-py==1.4.31
+py==1.11.0
 Pygments==2.2.0
 pyparsing==2.1.10
 pytest==3.0.6