diff --git a/package.json b/package.json
index 7f88bb81..2bb817bb 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   "author": "Junichi Kato <j5ik2o@gmail.com>",
   "license": "MIT",
   "devDependencies": {
-    "@biomejs/biome": "2.4.14",
+    "@biomejs/biome": "2.4.15",
     "@types/jest": "^30.0.0",
     "@types/node": "^22.0.0",
     "@types/winston": "^2.4.4",