diff --git a/requirements.txt b/requirements.txt
index 1fc1264..65934a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ idna==2.7
 more-itertools==4.2.0
 packaging==16.8
 pluggy==0.6.0
-py==1.5.4
+py==1.10.0
 pyparsing==2.2.0
 pytest==3.6.3
 pytest-cov==2.5.1