diff --git a/requirements.txt b/requirements.txt
index c63bc65..24a3f44 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 Django==1.7.6
-ecdsa==0.13
+ecdsa==0.13.3
 Fabric==1.10.2
 paramiko==1.15.2
 pycrypto==2.6.1