diff --git a/requirements.txt b/requirements.txt
index e7f449e..b014f35 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 cov-core==1.15.0
 coverage>=4.1b2
-py==1.4.30
+py==1.10.0
 pytest==2.8.2
 pytest-cov==2.2.0
 codecov===2.0.15