diff --git a/requirements.txt b/requirements.txt
index 87132a4..c09baa8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ cov-core==1.15.0
 coverage==3.7.1
 ecdsa==0.11
 paramiko==1.15.1
-py==1.4.26
+py==1.10.0
 pycrypto==2.6.1
 pytest==2.6.4
 pytest-cov==1.8.1