diff --git a/requirements.txt b/requirements.txt
index 208f791..3c9a416 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ MarkupSafe==1.0
 mccabe==0.6.1
 numpy==1.13.3
 pandas==0.21.0
-py==1.4.34
+py==1.10.0
 Pygments==2.2.0
 pylint==1.7.4
 pytest==3.2.3