diff --git a/old/requirements.txt b/old/requirements.txt
index a27da24..d27dfa2 100644
--- a/old/requirements.txt
+++ b/old/requirements.txt
@@ -2,6 +2,6 @@ atomicwrites==1.1.5
 attrs==18.1.0
 more-itertools==4.2.0
 pluggy==0.6.0
-py==1.5.3
+py==1.10.0
 pytest==3.6.2
 six==1.11.0