diff --git a/requirements-current-3.6.txt b/requirements-current-3.6.txt
index fbc5b3d..5a343f9 100644
--- a/requirements-current-3.6.txt
+++ b/requirements-current-3.6.txt
@@ -6,7 +6,7 @@ command-not-found==0.3
 conan==1.44.1
 defer==1.0.6
 distro==1.5.0
-ecdsa==0.13
+ecdsa==0.13.3
 fail2ban==0.9.3
 flake8==3.5.0
 gramps==4.2.2