diff --git a/requirements.txt b/requirements.txt
index e38872a..bd3a251 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ more-itertools==4.2.0
 nose==1.3.7
 paramiko==2.4.2
 pluggy==0.6.0
-py==1.5.3
+py==1.10.0
 pyasn1==0.4.3
 pycparser==2.18
 PyNaCl==1.2.1