diff --git a/requirements.txt b/requirements.txt
index e0c0280..a49f4da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ nose==1.3.7
 numpy==1.11.2
 pep8==1.7.0
 pkginfo==1.3.2
-py==1.4.31
+py==1.10.0
 pytest==3.0.3
 pytest-cache==1.0
 pytest-pep8==1.0.6