diff --git a/package-lock.json b/package-lock.json
index 59dec68..813a24d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
       },
       "devDependencies": {
         "@eslint/js": "^9.18.0",
-        "@stylistic/eslint-plugin": "^4.1.0",
+        "@stylistic/eslint-plugin": "^5.1.0",
         "@types/node": "^22.10.5",
         "eslint": "^9.18.0",
         "llparse-dot": "^1.0.1",
@@ -683,15 +683,15 @@
       }
     },
     "node_modules/@stylistic/eslint-plugin": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/@stylistic/eslint-plugin/-/eslint-plugin-4.2.0.tgz",
-      "integrity": "sha512-8hXezgz7jexGHdo5WN6JBEIPHCSFyyU4vgbxevu4YLVS5vl+sxqAAGyXSzfNDyR6xMNSH5H1x67nsXcYMOHtZA==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@stylistic/eslint-plugin/-/eslint-plugin-5.1.0.tgz",
+      "integrity": "sha512-TJRJul4u/lmry5N/kyCU+7RWWOk0wyXN+BncRlDYBqpLFnzXkd7QGVfN7KewarFIXv0IX0jSF/Ksu7aHWEDeuw==",
       "dev": true,
-      "license": "MIT",
       "dependencies": {
-        "@typescript-eslint/utils": "^8.23.0",
-        "eslint-visitor-keys": "^4.2.0",
-        "espree": "^10.3.0",
+        "@eslint-community/eslint-utils": "^4.7.0",
+        "@typescript-eslint/types": "^8.34.1",
+        "eslint-visitor-keys": "^4.2.1",
+        "espree": "^10.4.0",
         "estraverse": "^5.3.0",
         "picomatch": "^4.0.2"
       },
@@ -702,6 +702,19 @@
         "eslint": ">=9.0.0"
       }
     },
+    "node_modules/@stylistic/eslint-plugin/node_modules/@typescript-eslint/types": {
+      "version": "8.35.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.35.0.tgz",
+      "integrity": "sha512-0mYH3emanku0vHw2aRLNGqe7EXh9WHEhi7kZzscrMDf6IIRUQ5Jk4wp1QrledE/36KtdZrVfKnE32eZCf/vaVQ==",
+      "dev": true,
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      }
+    },
     "node_modules/@stylistic/eslint-plugin/node_modules/picomatch": {
       "version": "4.0.2",
       "dev": true,
@@ -999,9 +1012,10 @@
       }
     },
     "node_modules/acorn": {
-      "version": "8.14.0",
+      "version": "8.15.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.15.0.tgz",
+      "integrity": "sha512-NZyJarBfL7nWwIq+FDL6Zp/yHEhePMNnnJ0y3qfieCrmNvYct8uvtiV41UvlSe6apAfk0fY1FbWx+NwfmpvtTg==",
       "dev": true,
-      "license": "MIT",
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -1344,9 +1358,10 @@
       }
     },
     "node_modules/eslint-visitor-keys": {
-      "version": "4.2.0",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-4.2.1.tgz",
+      "integrity": "sha512-Uhdk5sfqcee/9H/rCOJikYz67o0a2Tw2hGRPOG2Y1R2dg7brRe1uG0yaNQDHu+TO/uQPF/5eCapvYSmHUjt7JQ==",
       "dev": true,
-      "license": "Apache-2.0",
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
@@ -1355,13 +1370,14 @@
       }
     },
     "node_modules/espree": {
-      "version": "10.3.0",
+      "version": "10.4.0",
+      "resolved": "https://registry.npmjs.org/espree/-/espree-10.4.0.tgz",
+      "integrity": "sha512-j6PAQ2uUr79PZhBjP5C5fhl8e39FmRnOjsD5lGnWrFU8i2G776tBK7+nP8KuQUTTyAZUwfQqXAgrVH5MbH9CYQ==",
       "dev": true,
-      "license": "BSD-2-Clause",
       "dependencies": {
-        "acorn": "^8.14.0",
+        "acorn": "^8.15.0",
         "acorn-jsx": "^5.3.2",
-        "eslint-visitor-keys": "^4.2.0"
+        "eslint-visitor-keys": "^4.2.1"
       },
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
diff --git a/package.json b/package.json
index 9030bc1..7aa49a2 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
   "homepage": "https://github.com/nodejs/llhttp#readme",
   "devDependencies": {
     "@eslint/js": "^9.18.0",
-    "@stylistic/eslint-plugin": "^4.1.0",
+    "@stylistic/eslint-plugin": "^5.1.0",
     "@types/node": "^22.10.5",
     "eslint": "^9.18.0",
     "llparse-dot": "^1.0.1",