diff --git a/requirements.txt b/requirements.txt
index 2383467..0470d68 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ itsdangerous==0.24
 Jinja2==2.8
 jsonpointer==1.10
 MarkupSafe==0.23
-py==1.4.31
+py==1.10.0
 pytest==2.9.1
 pytest-httpbin==0.2.3
 PyYAML==3.11