diff --git a/requirements.txt b/requirements.txt
index a776935..1db7615 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 flask>=3.0
 pyyaml>=6.0
 waitress>=3.0
-markupsafe>=2.1
+markupsafe>=3.0.4
 pytest>=8.0