diff --git a/web_framework/mydjango/requirements.txt b/web_framework/mydjango/requirements.txt
index bc16447..9d24717 100644
--- a/web_framework/mydjango/requirements.txt
+++ b/web_framework/mydjango/requirements.txt
@@ -6,7 +6,7 @@ django-filter==0.10.0
 django-import-export==0.4.1
 django-model-utils==2.4
 djangorestframework==3.3.2
-ecdsa==0.13
+ecdsa==0.13.3
 Markdown==2.6.2
 MySQL-python==1.2.5
 paramiko==1.16.0