diff --git a/requirements.txt b/requirements.txt
index fd56750..eb89ca4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alembic==1.4.2
 astroid==2.2.5
 Click==7.0
-ecdsa==0.13.2
+ecdsa==0.13.3
 Flask==1.0.2
 Flask-Cors==3.0.8
 Flask-Migrate==2.5.3