diff --git a/create.ts b/create.ts
index 28658de..bb6842e 100644
--- a/create.ts
+++ b/create.ts
@@ -10,7 +10,7 @@ import { fileExists, compareAndWriteFile } from '@nolyfill/internal';
 import { transform } from '@swc/core';
 import type { Options as SwcOptions } from '@swc/core';
 
-import type { PackageJson } from 'type-fest';
+import type { PackageJson } from '@package-json/types';
 
 /**
  * The package.json inside the project has a non-nullable "version" field,
diff --git a/package.json b/package.json
index bd01cf9..cf3c73f 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "@eslint-sukka/ts": "^5.1.2",
     "@jsdevtools/ez-spawn": "^3.0.4",
     "@nolyfill/internal": "workspace:*",
+    "@package-json/types": "^0.0.6",
     "@swc-node/register": "^1.10.9",
     "@swc/core": "^1.7.0",
     "@types/node": "^20.14.11",
@@ -31,7 +32,6 @@
     "rollup-plugin-dts": "^6.1.1",
     "rollup-plugin-swc3": "^0.11.2",
     "turbo": "^2.0.9",
-    "type-fest": "^4.22.1",
     "typescript": "^5.5.3"
   },
   "packageManager": "pnpm@9.5.0",
diff --git a/packages/manual/assert/rollup.config.ts b/packages/manual/assert/rollup.config.ts
index 9adb597..c18d352 100644
--- a/packages/manual/assert/rollup.config.ts
+++ b/packages/manual/assert/rollup.config.ts
@@ -1,4 +1,4 @@
-import type { PackageJson } from 'type-fest';
+import type { PackageJson } from '@package-json/types';
 
 import resolve from 'resolve-pkg';
 import fs from 'fs';
diff --git a/packages/manual/es-iterator-helpers/rollup.config.ts b/packages/manual/es-iterator-helpers/rollup.config.ts
index 2191998..ac03be5 100644
--- a/packages/manual/es-iterator-helpers/rollup.config.ts
+++ b/packages/manual/es-iterator-helpers/rollup.config.ts
@@ -1,4 +1,4 @@
-import type { PackageJson } from 'type-fest';
+import type { PackageJson } from '@package-json/types';
 
 import resolve from 'resolve-pkg';
 import fs from 'fs';
diff --git a/packages/tools/cli/rollup.config.ts b/packages/tools/cli/rollup.config.ts
index 3cb1020..8d20b5c 100644
--- a/packages/tools/cli/rollup.config.ts
+++ b/packages/tools/cli/rollup.config.ts
@@ -10,7 +10,7 @@ import fs from 'fs';
 import { builtinModules } from 'module';
 import { MagicString } from '@napi-rs/magic-string';
 
-import type { PackageJson } from 'type-fest';
+import type { PackageJson } from '@package-json/types';
 
 const builtinModulesSet = new Set(builtinModules);
 
diff --git a/packages/tools/cli/src/types.ts b/packages/tools/cli/src/types.ts
index 9f79c23..c08f23e 100644
--- a/packages/tools/cli/src/types.ts
+++ b/packages/tools/cli/src/types.ts
@@ -1,4 +1,4 @@
-import type { PackageJson } from 'type-fest';
+import type { PackageJson } from '@package-json/types';
 
 export interface PackageNode {
   name: string,
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 4ff2ef6..bf84601 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -148,6 +148,9 @@ importers:
       '@nolyfill/internal':
         specifier: workspace:*
         version: link:packages/tools/internal
+      '@package-json/types':
+        specifier: ^0.0.6
+        version: 0.0.6
       '@swc-node/register':
         specifier: ^1.10.9
         version: 1.10.9(@swc/core@1.7.0(@swc/helpers@0.5.12))(@swc/types@0.1.12)(typescript@5.5.3)
@@ -193,9 +196,6 @@ importers:
       turbo:
         specifier: ^2.0.9
         version: 2.0.9
-      type-fest:
-        specifier: ^4.22.1
-        version: 4.22.1
       typescript:
         specifier: ^5.5.3
         version: 5.5.3
@@ -1248,6 +1248,9 @@ packages:
     cpu: [x64]
     os: [win32]
 
+  '@package-json/types@0.0.6':
+    resolution: {integrity: sha512-UBVVLQfUXvzGrgKt7TqLupdzsslRSqgel/01UTc/2yUOdqFM5ZNLCNzz/ev51SRpNrlYKtqAY8nL6FdMWBWw1A==}
+
   '@pkgjs/parseargs@0.11.0':
     resolution: {integrity: sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==}
     engines: {node: '>=14'}
@@ -4643,6 +4646,8 @@ snapshots:
   '@oxc-resolver/binding-win32-x64-msvc@1.10.2':
     optional: true
 
+  '@package-json/types@0.0.6': {}
+
   '@pkgjs/parseargs@0.11.0':
     optional: true