diff --git a/.eslintignore b/.eslintignore
deleted file mode 100644
index cfde1d36937..00000000000
--- a/.eslintignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*.d.ts
-out
diff --git a/.eslintrc.js b/.eslintrc.js
deleted file mode 100644
index 17ee2e39d4e..00000000000
--- a/.eslintrc.js
+++ /dev/null
@@ -1,59 +0,0 @@
-module.exports = {
-  root: true,
-  parser: "@typescript-eslint/parser",
-  plugins: [
-    "@typescript-eslint",
-    '@stylistic',
-  ],
-  extends: [
-    "eslint:recommended",
-    "plugin:@typescript-eslint/eslint-recommended",
-    "plugin:@typescript-eslint/recommended",
-    "plugin:prettier/recommended",
-    "plugin:@typescript-eslint/recommended-requiring-type-checking",
-  ],
-  parserOptions: {
-    project: ["./packages/*/tsconfig.json"],
-  },
-  rules: {
-    "@typescript-eslint/no-require-imports": "off",
-    semi: "off",
-    "prettier/prettier": "warn",
-    "@typescript-eslint/prefer-promise-reject-errors": "off",
-    "@stylistic/member-delimiter-style": [
-      "error",
-      {
-        multiline: {
-          delimiter: "none",
-        },
-      },
-    ],
-    "@typescript-eslint/ban-ts-comment": "off",
-    "@typescript-eslint/explicit-module-boundary-types": "off",
-    "@typescript-eslint/no-unsafe-member-access": "off",
-    "@typescript-eslint/restrict-template-expressions": "off",
-    "@typescript-eslint/no-unsafe-return": "off",
-    "@typescript-eslint/no-unsafe-argument": "off",
-    "@typescript-eslint/no-unsafe-assignment": "off",
-    "@typescript-eslint/no-explicit-any": "off",
-    "@typescript-eslint/no-unsafe-call": "off",
-    "@typescript-eslint/no-non-null-assertion": "off",
-    "no-constant-condition": "off",
-    "@typescript-eslint/no-unused-vars": [
-      "warn", // or "error"
-      {
-        "argsIgnorePattern": "^_",
-        "varsIgnorePattern": "^_",
-        "caughtErrorsIgnorePattern": "^_"
-      }
-    ],
-    "@typescript-eslint/no-var-requires": "off",
-    "@typescript-eslint/explicit-function-return-type": [
-      "off",
-      {
-        // "allowExpressions": false,
-      },
-    ],
-    "@typescript-eslint/no-redundant-type-constituents": "off",
-  },
-}
diff --git a/eslint.config.mjs b/eslint.config.mjs
new file mode 100644
index 00000000000..8b02553eb11
--- /dev/null
+++ b/eslint.config.mjs
@@ -0,0 +1,82 @@
+import typescriptEslint from "@typescript-eslint/eslint-plugin";
+import stylistic from "@stylistic/eslint-plugin";
+import tsParser from "@typescript-eslint/parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [{
+    ignores: [
+      "**/*.d.ts",
+      "**/out",
+      // used for CLI
+      "**/main.js",
+      "packages/electron-builder/cli.js",
+      "packages/electron-builder/install-app-deps.js"
+    ],
+}, ...compat.extends(
+    "eslint:recommended",
+    "plugin:@typescript-eslint/eslint-recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:prettier/recommended",
+    "plugin:@typescript-eslint/recommended-requiring-type-checking",
+), {
+    plugins: {
+        "@typescript-eslint": typescriptEslint,
+        "@stylistic": stylistic,
+    },
+
+    languageOptions: {
+        parser: tsParser,
+        ecmaVersion: 5,
+        sourceType: "script",
+
+        parserOptions: {
+            project: ["./packages/*/tsconfig.json"],
+        },
+    },
+
+    rules: {
+        "@typescript-eslint/no-require-imports": "off",
+        semi: "off",
+        "prettier/prettier": "warn",
+        "@typescript-eslint/prefer-promise-reject-errors": "off",
+
+        "@stylistic/member-delimiter-style": ["error", {
+            multiline: {
+                delimiter: "none",
+            },
+        }],
+
+        "@typescript-eslint/ban-ts-comment": "off",
+        "@typescript-eslint/explicit-module-boundary-types": "off",
+        "@typescript-eslint/no-unsafe-member-access": "off",
+        "@typescript-eslint/restrict-template-expressions": "off",
+        "@typescript-eslint/no-unsafe-return": "off",
+        "@typescript-eslint/no-unsafe-argument": "off",
+        "@typescript-eslint/no-unsafe-assignment": "off",
+        "@typescript-eslint/no-explicit-any": "off",
+        "@typescript-eslint/no-unsafe-call": "off",
+        "@typescript-eslint/no-non-null-assertion": "off",
+        "no-constant-condition": "off",
+
+        "@typescript-eslint/no-unused-vars": ["warn", {
+            argsIgnorePattern: "^_",
+            varsIgnorePattern: "^_",
+            caughtErrorsIgnorePattern: "^_",
+        }],
+
+        "@typescript-eslint/no-var-requires": "off",
+        "@typescript-eslint/explicit-function-return-type": ["off", {}],
+        "@typescript-eslint/no-redundant-type-constituents": "off",
+    },
+}];
\ No newline at end of file
diff --git a/package.json b/package.json
index eb6f3cafcf3..19195d2fdbb 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "scripts": {
     "//": "do not wrap into single quotes - windows doesn't unwrap arg in this case",
     "compile": "tsc --build",
-    "lint": "eslint packages --ext .ts",
+    "lint": "eslint packages",
     "lint-staged": "lint-staged",
     "lint-deps": "node ./test/out/helpers/checkDeps.js",
     "pretest": "pnpm lint-deps && pnpm lint",
@@ -54,7 +54,7 @@
     "@typescript-eslint/eslint-plugin": "^8.7.0",
     "@typescript-eslint/parser": "^8.7.0",
     "conventional-changelog-cli": "5.0.0",
-    "eslint": "^8.57.1",
+    "eslint": "^9.0.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.2.1",
     "fs-extra": "10.1.0",
diff --git a/packages/app-builder-lib/src/ProtonFramework.ts b/packages/app-builder-lib/src/ProtonFramework.ts
index 7458c16f205..6f42b43df2a 100644
--- a/packages/app-builder-lib/src/ProtonFramework.ts
+++ b/packages/app-builder-lib/src/ProtonFramework.ts
@@ -30,7 +30,7 @@ export class ProtonFramework extends LibUiFramework {
     const babelOptions: any = { ast: false, sourceMaps: "inline" }
     if (process.env.TEST_SET_BABEL_PRESET === "true") {
       babel = require("@babel/core")
-      // eslint-disable-next-line @typescript-eslint/no-use-before-define
+
       babel = testOnlyBabel(babel, babelOptions, this.version)
     } else {
       try {
diff --git a/packages/app-builder-lib/src/asar/asarUtil.ts b/packages/app-builder-lib/src/asar/asarUtil.ts
index 83e8f692047..eccbb4c18a1 100644
--- a/packages/app-builder-lib/src/asar/asarUtil.ts
+++ b/packages/app-builder-lib/src/asar/asarUtil.ts
@@ -11,7 +11,6 @@ import { AsarFilesystem, Node } from "./asar"
 import { hashFile, hashFileContents } from "./integrity"
 import { detectUnpackedDirs } from "./unpackDetector"
 
-// eslint-disable-next-line @typescript-eslint/no-var-requires
 const pickle = require("chromium-pickle-js")
 
 /** @internal */
diff --git a/packages/app-builder-lib/src/codeSign/macCodeSign.ts b/packages/app-builder-lib/src/codeSign/macCodeSign.ts
index b408a930d46..0fe651c7ef8 100644
--- a/packages/app-builder-lib/src/codeSign/macCodeSign.ts
+++ b/packages/app-builder-lib/src/codeSign/macCodeSign.ts
@@ -167,7 +167,7 @@ export async function createKeychain({ tmpDir, cscLink, cscKeyPassword, cscILink
   // use constant file
   const keychainFile = path.join(process.env.APP_BUILDER_TMP_DIR || tmpdir(), `${createHash("sha256").update(currentDir).update("app-builder").digest("hex")}.keychain`)
   // noinspection JSUnusedLocalSymbols
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+
   await removeKeychain(keychainFile, false).catch(_ => {
     /* ignore*/
   })
diff --git a/packages/app-builder-lib/src/macPackager.ts b/packages/app-builder-lib/src/macPackager.ts
index 56695903732..f2a49cd8548 100644
--- a/packages/app-builder-lib/src/macPackager.ts
+++ b/packages/app-builder-lib/src/macPackager.ts
@@ -86,7 +86,6 @@ export class MacPackager extends PlatformPackager<MacConfiguration> {
           break
 
         case "dmg": {
-          // eslint-disable-next-line @typescript-eslint/no-var-requires
           const { DmgTarget } = require("dmg-builder")
           mapper(name, outDir => new DmgTarget(this, outDir))
           break
diff --git a/packages/app-builder-lib/src/publish/KeygenPublisher.ts b/packages/app-builder-lib/src/publish/KeygenPublisher.ts
index dbb5dd4b806..7fe58f25170 100644
--- a/packages/app-builder-lib/src/publish/KeygenPublisher.ts
+++ b/packages/app-builder-lib/src/publish/KeygenPublisher.ts
@@ -105,7 +105,6 @@ export class KeygenPublisher extends HttpPublisher {
     _arch: Arch,
     dataLength: number,
     requestProcessor: (request: ClientRequest, reject: (error: Error) => void) => void,
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
     _file: string
   ): Promise<string> {
     return HttpExecutor.retryOnServerError(async () => {
diff --git a/packages/app-builder-lib/src/targets/nsis/NsisTarget.ts b/packages/app-builder-lib/src/targets/nsis/NsisTarget.ts
index d1abbe7ffaa..27f26b42285 100644
--- a/packages/app-builder-lib/src/targets/nsis/NsisTarget.ts
+++ b/packages/app-builder-lib/src/targets/nsis/NsisTarget.ts
@@ -396,7 +396,6 @@ export class NsisTarget extends Target {
         let i = 0
         while (!(await exists(uninstallerPath)) && i++ < 100) {
           // noinspection JSUnusedLocalSymbols
-          // eslint-disable-next-line @typescript-eslint/no-unused-vars
           await new Promise((resolve, _reject) => setTimeout(resolve, 300))
         }
       }
diff --git a/packages/app-builder-lib/src/util/config/config.ts b/packages/app-builder-lib/src/util/config/config.ts
index 0efebe50e63..2aadb917ba1 100644
--- a/packages/app-builder-lib/src/util/config/config.ts
+++ b/packages/app-builder-lib/src/util/config/config.ts
@@ -7,7 +7,6 @@ import { Configuration } from "../../configuration"
 import { FileSet } from "../../options/PlatformSpecificBuildOptions"
 import { reactCra } from "../../presets/rectCra"
 import { PACKAGE_VERSION } from "../../version"
-// eslint-disable-next-line @typescript-eslint/no-var-requires
 const validateSchema = require("@develar/schema-utils")
 
 // https://github.com/electron-userland/electron-builder/issues/1847
diff --git a/packages/app-builder-lib/src/vm/ParallelsVm.ts b/packages/app-builder-lib/src/vm/ParallelsVm.ts
index 6734219b887..e0f29a6c7ca 100644
--- a/packages/app-builder-lib/src/vm/ParallelsVm.ts
+++ b/packages/app-builder-lib/src/vm/ParallelsVm.ts
@@ -80,7 +80,6 @@ export class ParallelsVmManager extends VmManager {
 
     if (!this.isExitHookAdded) {
       this.isExitHookAdded = true
-      // eslint-disable-next-line @typescript-eslint/no-var-requires
       require("async-exit-hook")((callback: (() => void) | null) => {
         const stopArgs = ["suspend", vmId]
         if (callback == null) {
diff --git a/packages/builder-util/src/asyncTaskManager.ts b/packages/builder-util/src/asyncTaskManager.ts
index 992fb5a7cdd..f27ca28b8d7 100644
--- a/packages/builder-util/src/asyncTaskManager.ts
+++ b/packages/builder-util/src/asyncTaskManager.ts
@@ -73,7 +73,6 @@ export class AsyncTaskManager {
           return []
         }
 
-        // eslint-disable-next-line @typescript-eslint/no-floating-promises
         list = tasks.slice()
         tasks.length = 0
       }
diff --git a/packages/electron-updater/src/AppUpdater.ts b/packages/electron-updater/src/AppUpdater.ts
index 6d2ecaddd08..0f972a2777f 100644
--- a/packages/electron-updater/src/AppUpdater.ts
+++ b/packages/electron-updater/src/AppUpdater.ts
@@ -438,7 +438,6 @@ export abstract class AppUpdater extends (EventEmitter as new () => TypedEmitter
     }
   }
 
-  // eslint-disable-next-line @typescript-eslint/explicit-function-return-type
   private createProviderRuntimeOptions() {
     return {
       isUseMultipleRangeRequest: true,
diff --git a/packages/electron-updater/src/differentialDownloader/downloadPlanBuilder.ts b/packages/electron-updater/src/differentialDownloader/downloadPlanBuilder.ts
index c4d6f178596..f836a63f69c 100644
--- a/packages/electron-updater/src/differentialDownloader/downloadPlanBuilder.ts
+++ b/packages/electron-updater/src/differentialDownloader/downloadPlanBuilder.ts
@@ -104,7 +104,6 @@ function validateAndAdd(operation: Operation, operations: Array<Operation>, chec
   operations.push(operation)
 }
 
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
 function buildChecksumMap(file: BlockMapFile, fileOffset: number, logger: Logger) {
   const checksumToOffset = new Map<string, number>()
   const checksumToSize = new Map<string, number>()
diff --git a/packages/electron-updater/src/providers/PrivateGitHubProvider.ts b/packages/electron-updater/src/providers/PrivateGitHubProvider.ts
index 94558de95be..872c8c4dc05 100644
--- a/packages/electron-updater/src/providers/PrivateGitHubProvider.ts
+++ b/packages/electron-updater/src/providers/PrivateGitHubProvider.ts
@@ -59,7 +59,6 @@ export class PrivateGitHubProvider extends BaseGitHubProvider<PrivateGitHubUpdat
     return this.configureHeaders("application/octet-stream")
   }
 
-  // eslint-disable-next-line @typescript-eslint/explicit-function-return-type
   private configureHeaders(accept: string) {
     return {
       accept,
diff --git a/test/src/helpers/checkDeps.ts b/test/src/helpers/checkDeps.ts
index 7c2d7408b9e..410ef768d0b 100644
--- a/test/src/helpers/checkDeps.ts
+++ b/test/src/helpers/checkDeps.ts
@@ -10,6 +10,12 @@ const knownUnusedDevDependencies = new Set<string>([
   "@babel/plugin-transform-modules-commonjs", // Not sure what this is used for, but keeping just in case (for now)
   "@changesets/changelog-github", // Used in package.json CI/CD logic
   "typedoc-plugin-markdown", // Used in typedoc config
+  // Eslint config doesn't get scanned by
+  "@stylistic/eslint-plugin",
+  "@typescript-eslint/eslint-plugin",
+  "@typescript-eslint/parser",
+  "eslint-config-prettier",
+  "eslint-plugin-prettier"
 ])
 const knownMissedDependencies = new Set<string>(["babel-core", "babel-preset-env", "babel-preset-stage-0", "babel-preset-react"])