diff --git a/package-lock.json b/package-lock.json
index 59a8d78..d49146c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "(Apache-2.0 AND MIT)",
       "devDependencies": {
         "@types/node": "^22.15.30",
-        "eslint": "^9.27.0",
+        "eslint": "^9.28.0",
         "neostandard": "^0.12.1",
         "prettier": "^3.5.3",
         "typescript": "^5.8.3"
@@ -121,9 +121,9 @@
       }
     },
     "node_modules/@eslint/js": {
-      "version": "9.27.0",
-      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.27.0.tgz",
-      "integrity": "sha512-G5JD9Tu5HJEu4z2Uo4aHY2sLV64B7CDMXxFzqzjl3NKd6RVzSXNoE80jk7Y0lJkTTkjiIhBAqmlYwjuBY3tvpA==",
+      "version": "9.28.0",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.28.0.tgz",
+      "integrity": "sha512-fnqSjGWd/CoIp4EXIxWVK/sHA6DOHN4+8Ix2cX5ycOY7LG0UY8nHCU5pIp2eaE1Mc7Qd8kHspYNzYXT2ojPLzg==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -1259,9 +1259,9 @@
       }
     },
     "node_modules/eslint": {
-      "version": "9.27.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-9.27.0.tgz",
-      "integrity": "sha512-ixRawFQuMB9DZ7fjU3iGGganFDp3+45bPOdaRurcFHSXO1e/sYwUX/FtQZpLZJR6SjMoJH8hR2pPEAfDyCoU2Q==",
+      "version": "9.28.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-9.28.0.tgz",
+      "integrity": "sha512-ocgh41VhRlf9+fVpe7QKzwLj9c92fDiqOj8Y3Sd4/ZmVA4Btx4PlUYPq4pp9JDyupkf1upbEXecxL2mwNV7jPQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -1271,7 +1271,7 @@
         "@eslint/config-helpers": "^0.2.1",
         "@eslint/core": "^0.14.0",
         "@eslint/eslintrc": "^3.3.1",
-        "@eslint/js": "9.27.0",
+        "@eslint/js": "9.28.0",
         "@eslint/plugin-kit": "^0.3.1",
         "@humanfs/node": "^0.16.6",
         "@humanwhocodes/module-importer": "^1.0.1",
diff --git a/package.json b/package.json
index 28bd9d3..c05f9c1 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
   "homepage": "https://github.com/CheckerNetwork/tiny-json-rpc#readme",
   "devDependencies": {
     "@types/node": "^22.15.30",
-    "eslint": "^9.27.0",
+    "eslint": "^9.28.0",
     "neostandard": "^0.12.1",
     "prettier": "^3.5.3",
     "typescript": "^5.8.3"