diff --git a/requirements.txt b/requirements.txt
index 717c893..44481f3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ Flask-Script
 Flask-Migrate
 astroid==2.2.5
 Click==7.0
-ecdsa==0.13.2
+ecdsa==0.13.3
 future==0.17.1
 isort==4.3.18
 itsdangerous==1.1.0