diff --git a/requirements/deploy.txt b/requirements/deploy.txt
index 683d9ab..ffea650 100644
--- a/requirements/deploy.txt
+++ b/requirements/deploy.txt
@@ -3,6 +3,6 @@ Fabric==1.10.2
 # Required by Fabric
 paramiko==1.15.2
 pycrypto==2.6.1
-ecdsa==0.13
+ecdsa==0.13.3
 
 newrelic==2.56