diff --git a/tripletexweb/backend/requirements.txt b/tripletexweb/backend/requirements.txt
index 809d2df..ddd758c 100644
--- a/tripletexweb/backend/requirements.txt
+++ b/tripletexweb/backend/requirements.txt
@@ -1,6 +1,6 @@
 cyb-tripletex==0.0.1
 Flask==3.0.1
-Flask-Cors==4.0.0
+Flask-Cors==5.0.0
 gunicorn==21.2.0
 requests==2.31.0
 python-dotenv==1.0.1