diff --git a/src/index.ts b/src/index.ts
index 7f0b146..0359d3f 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -47,3 +47,16 @@ export async function resolveTSConfig (id: string = process.cwd(), opts: Resolve
   const resolvedPath = isAbsolute(id) ? id : await resolvePath(id, opts)
   return findNearestFile('tsconfig.json', { startingFrom: resolvedPath, ...opts })
 }
+
+const lockFiles = ['yarn.lock', 'package-lock.json', 'pnpm-lock.yaml', 'npm-shrinkwrap.json']
+
+export async function resolveLockfile(id: string = process.cwd(), opts: ResolveOptions = {}): Promise<string> {
+  const resolvedPath = isAbsolute(id) ? id : await resolvePath(id, opts)
+  const _opts = { startingFrom: resolvedPath, ...opts }
+  for (const lockFile of lockFiles) {
+    try {
+      return await findNearestFile(lockFile, _opts)
+    } catch { }
+  }
+  throw new Error('No lockfile found from ' + id)
+}
diff --git a/test/fixture/sub/yarn.lock b/test/fixture/sub/yarn.lock
new file mode 100644
index 0000000..e69de29
diff --git a/test/index.test.ts b/test/index.test.ts
index 379b144..dfa3a87 100644
--- a/test/index.test.ts
+++ b/test/index.test.ts
@@ -10,7 +10,8 @@ import {
   writePackageJSON,
   writeTSConfig,
   TSConfig,
-  ResolveOptions
+  ResolveOptions,
+  resolveLockfile
 } from '../src'
 
 const fixtureDir = resolve(dirname(fileURLToPath(import.meta.url)), 'fixture')
@@ -87,3 +88,12 @@ describe('tsconfig.json', () => {
     // expectTypeOf(options.maxNodeModuleJsDepth).toEqualTypeOf<number | undefined>()
   })
 })
+
+describe('resolveLockfile', () => {
+  it ('works for subdir', async () => {
+    expect(await resolveLockfile(rFixture('./sub'))).to.equal(rFixture('./sub/yarn.lock'))
+  })
+  it ('works for root dir', async () => {
+    expect(await resolveLockfile(rFixture('.'))).to.equal(rFixture('../..', 'pnpm-lock.yaml'))
+  })
+})