diff --git a/README.md b/README.md
index 148cac8..ee42d8a 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,18 @@ export default [
 ]
 ```
 
+For example, for ESLint Mocha plugin:
+
+```js file=eslint.config.mjs
+import * as hamster from '@hamster-bot/eslint-config'
+import mochaPlugin from 'eslint-plugin-mocha'
+
+export default [
+  ...hamster.configs.base,
+  mochaPlugin.configs.flat.recommended,
+]
+```
+
 > You can also use `require()` and `module.export` if you are using CommonJS.
 > In that case, you should use `.cjs` extension or just `.js` for the configuration file.
 
diff --git a/package.json b/package.json
index 60cf2ca..4256f7f 100644
--- a/package.json
+++ b/package.json
@@ -52,19 +52,12 @@
     "@types/eslint__eslintrc": "^2.1.2",
     "@types/eslint__js": "^8.42.3",
     "eslint": "^9.12.0",
-    "eslint-plugin-mocha": "^10.5.0",
     "rollup": "^4.20.0",
     "tslib": "^2.7.0",
     "typescript": "^5.5.4"
   },
   "peerDependencies": {
-    "eslint": "^8.34.0 || >=9.0.0",
-    "eslint-plugin-mocha": "^10.3.0"
-  },
-  "peerDependenciesMeta": {
-    "eslint-plugin-mocha": {
-      "optional": true
-    }
+    "eslint": "^8.34.0 || >=9.0.0"
   },
   "packageManager": "yarn@4.3.1"
 }
diff --git a/src/base.ts b/src/base.ts
index 422b0e7..18a70d4 100644
--- a/src/base.ts
+++ b/src/base.ts
@@ -1,7 +1,6 @@
 import { FlatCompat } from '@eslint/eslintrc'
 import js from '@eslint/js'
 import { Linter } from 'eslint'
-import mochaPlugin from 'eslint-plugin-mocha'
 
 import stylistic from './stylistic'
 
@@ -10,7 +9,6 @@ const compat = new FlatCompat()
 const config: Linter.Config[] = [
   js.configs.recommended,
   ...(compat.extends('plugin:import-x/recommended') as any),
-  mochaPlugin.configs.flat.recommended,
   {
     ignores: [
       '**/.git/**',
diff --git a/src/env.d.ts b/src/env.d.ts
index a150e68..1f2d9d7 100644
--- a/src/env.d.ts
+++ b/src/env.d.ts
@@ -4,8 +4,8 @@ declare module 'eslint-plugin-mocha' {
     rules: Linter.RulesRecord
     configs: {
       flat: {
-        recommended: Linter.FlatConfig
-        all: Linter.FlatConfig
+        recommended: Linter.Config
+        all: Linter.Config
       }
     }
   }