diff --git a/.changeset/stupid-paths-rest.md b/.changeset/stupid-paths-rest.md
new file mode 100644
index 0000000..c1f2a70
--- /dev/null
+++ b/.changeset/stupid-paths-rest.md
@@ -0,0 +1,7 @@
+---
+"eslint-import-resolver-typescript": patch
+---
+
+fix: don't resolve not implemented node modules in `bun`
+
+`is-bun-module` is marked as `dependency`, again, for correctness
diff --git a/.size-limit.json b/.size-limit.json
index f8a0842..32a6a58 100644
--- a/.size-limit.json
+++ b/.size-limit.json
@@ -1,6 +1,6 @@
 [
   {
     "path": "./lib/index.js",
-    "limit": "1.5kB"
+    "limit": "1.4kB"
   }
 ]
diff --git a/package.json b/package.json
index e0d9de1..6b3f5e1 100644
--- a/package.json
+++ b/package.json
@@ -66,8 +66,7 @@
   "peerDependencies": {
     "eslint": "*",
     "eslint-plugin-import": "*",
-    "eslint-plugin-import-x": "*",
-    "is-bun-module": "*"
+    "eslint-plugin-import-x": "*"
   },
   "peerDependenciesMeta": {
     "eslint-plugin-import": {
@@ -75,14 +74,12 @@
     },
     "eslint-plugin-import-x": {
       "optional": true
-    },
-    "is-bun-module": {
-      "optional": true
     }
   },
   "dependencies": {
     "debug": "^4.4.0",
     "get-tsconfig": "^4.10.0",
+    "is-bun-module": "^2.0.0",
     "rspack-resolver": "^1.2.2",
     "stable-hash": "^0.0.5",
     "tinyglobby": "^0.2.12"
@@ -105,7 +102,6 @@
     "eslint": "^9.22.0",
     "eslint-import-resolver-typescript": "link:.",
     "eslint-plugin-import-x": "^4.9.0",
-    "is-bun-module": "^1.3.0",
     "lint-staged": "^15.5.0",
     "npm-run-all2": "^7.0.2",
     "path-serializer": "^0.3.4",
diff --git a/src/helpers.ts b/src/helpers.ts
index cecfdd3..4bc993e 100644
--- a/src/helpers.ts
+++ b/src/helpers.ts
@@ -1,9 +1,6 @@
 import fs from 'node:fs'
-import { createRequire } from 'node:module'
 import path from 'node:path'
 
-import type { IsBunModule } from './types.js'
-
 /**
  * For a scoped package, we must look in `@types/foo__bar` instead of `@types/@foo/bar`.
  */
@@ -74,17 +71,3 @@ export const toGlobPath = (pathname: string) => pathname.replaceAll('\\', '/')
 
 export const toNativePath = (pathname: string) =>
   '/' === path.sep ? pathname : pathname.replaceAll('/', '\\')
-
-let isBunModule: IsBunModule | undefined
-
-const _filename = typeof __filename === 'string' ? __filename : import.meta.url
-
-const DEFAULT_BUN_VERSION = 'latest'
-
-export const isBunBuiltin = (source: string) => {
-  isBunModule ??= createRequire(_filename)('is-bun-module')
-  return (
-    isBunModule!.isBunModule(source, DEFAULT_BUN_VERSION) ||
-    isBunModule!.isSupportedNodeModule(source, DEFAULT_BUN_VERSION)
-  )
-}
diff --git a/src/index.ts b/src/index.ts
index a391db3..34ae9aa 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -8,12 +8,12 @@ import {
   createFilesMatcher,
   parseTsconfig,
 } from 'get-tsconfig'
+import { isBunBuiltin } from 'is-bun-module'
 import { ResolverFactory } from 'rspack-resolver'
 import { stableHash } from 'stable-hash'
 
 import { IMPORT_RESOLVER_NAME, JS_EXT_PATTERN } from './constants.js'
 import {
-  isBunBuiltin,
   mangleScopedPackage,
   removeQuerystring,
   sortProjectsByAffinity,
@@ -53,6 +53,8 @@ const oxcResolve = (
   }
 }
 
+const isBun = !!process.versions.bun
+
 export const resolve = (
   source: string,
   file: string,
@@ -63,7 +65,7 @@ export const resolve = (
   options ||= {}
 
   // don't worry about node/bun core modules
-  if (isBuiltin(source) || (options.bun && isBunBuiltin(source))) {
+  if ((isBun || options.bun) ? isBunBuiltin(source) : isBuiltin(source)) {
     log('matched core:', source)
     return { found: true, path: null }
   }
diff --git a/src/types.ts b/src/types.ts
index 7f5c3e7..8f255a2 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -12,5 +12,3 @@ export interface TypeScriptResolverOptions extends NapiResolveOptions {
   bun?: boolean
   noWarnOnMultipleProjects?: boolean
 }
-
-export type IsBunModule = typeof import('is-bun-module')
diff --git a/yarn.lock b/yarn.lock
index 07be1be..9cb7bc8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7121,7 +7121,7 @@ __metadata:
     eslint-import-resolver-typescript: "link:."
     eslint-plugin-import-x: "npm:^4.9.0"
     get-tsconfig: "npm:^4.10.0"
-    is-bun-module: "npm:^1.3.0"
+    is-bun-module: "npm:^2.0.0"
     lint-staged: "npm:^15.5.0"
     npm-run-all2: "npm:^7.0.2"
     path-serializer: "npm:^0.3.4"
@@ -7142,14 +7142,11 @@ __metadata:
     eslint: "*"
     eslint-plugin-import: "*"
     eslint-plugin-import-x: "*"
-    is-bun-module: "*"
   peerDependenciesMeta:
     eslint-plugin-import:
       optional: true
     eslint-plugin-import-x:
       optional: true
-    is-bun-module:
-      optional: true
   languageName: unknown
   linkType: soft
 
@@ -9131,12 +9128,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"is-bun-module@npm:^1.3.0":
-  version: 1.3.0
-  resolution: "is-bun-module@npm:1.3.0"
+"is-bun-module@npm:^2.0.0":
+  version: 2.0.0
+  resolution: "is-bun-module@npm:2.0.0"
   dependencies:
-    semver: "npm:^7.6.3"
-  checksum: 10/b23d9ec7b4d4bfd89e4e72b5cd52e1bc153facad59fdd7394c656f8859a78740ef35996a2066240a32f39cc9a9da4b4eb69e68df3c71755a61ebbaf56d3daef0
+    semver: "npm:^7.7.1"
+  checksum: 10/cded5a1a58368b847872d08617975d620ad94426d76a932f3e08d55b4574d199e0a62a4fb024fa2dc444200b71719eb0bffc5d3d1e1cc82e29b293bb8d66a990
   languageName: node
   linkType: hard