diff --git a/requirements.txt b/requirements.txt
index 72aa81b..2253aa6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ cryptography==0.9
 cssselect==0.9.1
 decorator==3.4.0
 dockerfile-parse==0.0.5
-ecdsa==0.11
+ecdsa==0.13.3
 enum34==1.0.4
 Fabric==1.10.1
 fedpkg==1.20