diff --git a/dev_requirements.txt b/dev_requirements.txt
index 3ece45a..df6a979 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -23,7 +23,7 @@ pexpect==4.3.0
 pickleshare==0.7.4
 prompt-toolkit==1.0.15
 ptyprocess==0.5.2
-py==1.5.2
+py==1.10.0
 pycodestyle==2.3.1
 pyflakes==1.6.0
 Pygments==2.2.0