diff --git a/package.json b/package.json
index 1a0ccea..9d70792 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   },
   "dependencies": {
     "@actions/core": "3.0.0",
-    "markdownlint-cli2": "0.20.0"
+    "markdownlint-cli2": "0.21.0"
   },
   "devDependencies": {
     "@eslint/js": "10.0.1",