diff --git a/requirements.txt b/requirements.txt
index 4bea866..acd1b2f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ djangorestframework==3.0.0
 djrill==1.4.0
 drf-nested-routers==0.9.0
 dropbox==2.2.0
-ecdsa==0.13
+ecdsa==0.13.3
 Fabric==1.10.2
 fabtools==0.19.0
 flower==0.8.3