diff --git a/.gitignore b/.gitignore
index 4cf59f3..fe2026d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,4 +7,5 @@ temp/
 dist/
 pnpm-lock.yaml
 yarn.lock
-package-lock.json
\ No newline at end of file
+package-lock.json
+test/fixtures/add_file/a.ts
diff --git a/lib/wrap.js b/lib/wrap.js
index f565fc5..201f6cf 100644
--- a/lib/wrap.js
+++ b/lib/wrap.js
@@ -1,6 +1,7 @@
 // 拿到执行路径，以及执行文件
 const childPath = process.env.CHILD_CMD_PATH;
 const childCwd = process.env.CHILD_CWD;
+const { join } = require('path');
 
 process.on('message', data => {
   if (data.title === 'server-kill') {
@@ -9,4 +10,4 @@ process.on('message', data => {
 });
 
 process.chdir(childCwd);
-require(childPath);
+require(join(childCwd, childPath));
diff --git a/package.json b/package.json
index f1cdc69..b75aa99 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "execa": "^5.1.1",
     "jest": "^29.7.0",
     "mwts": "^1.3.0",
-    "typescript": "~4.9.5"
+    "typescript": "^5.4.5"
   },
   "engines": {
     "node": ">=12.0.0"
diff --git a/test/fixtures/add_file/b.ts b/test/fixtures/add_file/b.ts
new file mode 100644
index 0000000..6a91933
--- /dev/null
+++ b/test/fixtures/add_file/b.ts
@@ -0,0 +1 @@
+console.log('b')
diff --git a/test/fixtures/add_file/run.js b/test/fixtures/add_file/run.js
new file mode 100644
index 0000000..860b5fb
--- /dev/null
+++ b/test/fixtures/add_file/run.js
@@ -0,0 +1,2 @@
+console.log('abc')
+process.send({ type: 'ready' });
diff --git a/test/fixtures/add_file/tsconfig.json b/test/fixtures/add_file/tsconfig.json
new file mode 100644
index 0000000..b3be0de
--- /dev/null
+++ b/test/fixtures/add_file/tsconfig.json
@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "target": "es2018", // target es2018
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "experimentalDecorators": true,
+    "emitDecoratorMetadata": true,
+    "inlineSourceMap":true,
+    "noImplicitThis": true,
+    "noUnusedLocals": true,
+    "stripInternal": true,
+    "skipLibCheck": true,
+    "pretty": true,
+    "outDir": "dist"
+  },
+  "exclude": [
+    "dist",
+    "node_modules",
+    "test"
+  ]
+}
diff --git a/test/index.test.js b/test/index.test.js
index c4f35b5..fe058e3 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -1,6 +1,6 @@
 const execa = require('execa');
 const { join, resolve } = require('path');
-const { existsSync, unlinkSync } = require('fs');
+const { existsSync, unlinkSync, writeFileSync, readFileSync } = require('fs');
 const { forkRun } = require('../lib/process');
 
 const mtscPath = join(__dirname, '../bin/mwtsc.js');
@@ -81,4 +81,41 @@ describe('/test/index.js', () => {
       });
     });
   });
+
+  it('should test ts file change and reload process', async () => {
+
+    // prepare
+    const runPath = join(__dirname, 'fixtures/add_file');
+    const file = join(runPath, 'a.ts');
+    if (existsSync(file)) {
+      unlinkSync(file);
+    }
+
+    const cp = execa('node', [mtscPath, '--watch', '--run', './run.js'], {
+      cwd: runPath,
+      // stdio: 'ignore',
+    });
+
+    // add a new file
+    writeFileSync(file, 'console.log("a")');
+
+    // change file
+    writeFileSync(file, 'console.log("b")');
+
+    await new Promise((resolve, reject) => {
+      cp.on('exit', code => {
+        try {
+          expect(existsSync(join(runPath, 'dist/a.js'))).toBeTruthy();
+          expect(readFileSync(join(runPath, 'dist/a.js'), 'utf-8')).toMatch(/b/);
+          resolve();
+        } catch (err) {
+          reject(err);
+        }
+      });
+
+      setTimeout(() => {
+        cp.kill();
+      }, 10000);
+    });
+  });
 });