diff --git a/requirements-dev.txt b/requirements-dev.txt
index 1510fd8..d636461 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -14,7 +14,7 @@ more-itertools==7.2.0
 packaging==19.2
 pathlib2==2.3.4
 pluggy==0.13.0
-py==1.8.0
+py==1.10.0
 pycodestyle==2.5.0
 pyflakes==2.1.1
 pyparsing==2.4.2