diff --git a/packages/rstack/tests/config/reload-app-config/index.test.ts b/packages/rstack/tests/config/reload-app-config/index.test.ts
index 7fb1ea1c..6c8f08bc 100644
--- a/packages/rstack/tests/config/reload-app-config/index.test.ts
+++ b/packages/rstack/tests/config/reload-app-config/index.test.ts
@@ -82,3 +82,64 @@ define.app({
     'restarting server as test-temp-imported.ts changed',
   );
 });
+
+test('should reload config when an imported shared config changes', async ({
+  execCliAsync,
+  logHelper,
+  expect,
+}) => {
+  const configFile = path.join(
+    import.meta.dirname,
+    'test-temp-shared.config.ts',
+  );
+  const importedFile = path.join(import.meta.dirname, 'test-temp-shared.ts');
+  const port = await getRandomPort();
+  const url = `http://localhost:${port}`;
+
+  await writeFile(
+    importedFile,
+    `export const sharedConfig = {
+  app: {
+    html: { title: 'before import change' },
+  },
+};
+`,
+  );
+  await writeFile(
+    configFile,
+    `import { define } from 'rstack';
+import { sharedConfig } from './test-temp-shared.ts';
+
+define.extends([sharedConfig]);
+
+define.app({
+  server: { port: ${port} },
+});
+`,
+  );
+
+  execCliAsync('dev --config test-temp-shared.config.ts');
+  await logHelper.expectBuildEnd();
+  const initialResponse = await fetch(url);
+  expect(await initialResponse.text()).toContain(
+    '<title>before import change</title>',
+  );
+  logHelper.clearLogs();
+
+  await writeFile(
+    importedFile,
+    `export const sharedConfig = {
+  app: {
+    html: { title: 'after import change' },
+  },
+};
+`,
+  );
+
+  await logHelper.expectLog('restarting server as test-temp-shared.ts changed');
+  await logHelper.expectBuildEnd();
+  const updatedResponse = await fetch(url);
+  expect(await updatedResponse.text()).toContain(
+    '<title>after import change</title>',
+  );
+});
diff --git a/packages/rstack/tests/config/reload-doc-config/index.test.ts b/packages/rstack/tests/config/reload-doc-config/index.test.ts
index 6aece32f..ac59d52e 100644
--- a/packages/rstack/tests/config/reload-doc-config/index.test.ts
+++ b/packages/rstack/tests/config/reload-doc-config/index.test.ts
@@ -103,3 +103,57 @@ define.doc({
   );
   await logHelper.expectBuildEnd();
 });
+
+test('should restart doc dev server when an imported shared config changes', async ({
+  execCliAsync,
+  logHelper,
+  expect,
+}) => {
+  const configFile = path.join(
+    import.meta.dirname,
+    'test-temp-shared.config.ts',
+  );
+  const importedFile = path.join(import.meta.dirname, 'test-temp-shared.ts');
+  const port = await getRandomPort();
+  const url = `http://localhost:${port}`;
+
+  await writeFile(
+    importedFile,
+    `export const sharedConfig = {
+  doc: { title: 'before import change' },
+};
+`,
+  );
+  await writeFile(
+    configFile,
+    `import { define } from 'rstack';
+import { sharedConfig } from './test-temp-shared.ts';
+
+define.extends([sharedConfig]);
+define.doc({ root: 'docs' });
+`,
+  );
+
+  execCliAsync(`doc --config test-temp-shared.config.ts --port ${port}`);
+  await logHelper.expectBuildEnd();
+  const initialResponse = await fetch(url);
+  expect(await initialResponse.text()).toContain(
+    '<title>before import change</title>',
+  );
+  logHelper.clearLogs();
+
+  await writeFile(
+    importedFile,
+    `export const sharedConfig = {
+  doc: { title: 'after import change' },
+};
+`,
+  );
+
+  await logHelper.expectLog('restarting server as test-temp-shared.ts changed');
+  await logHelper.expectBuildEnd();
+  const updatedResponse = await fetch(url);
+  expect(await updatedResponse.text()).toContain(
+    '<title>after import change</title>',
+  );
+});
diff --git a/packages/rstack/tests/config/reload-lib-config/index.test.ts b/packages/rstack/tests/config/reload-lib-config/index.test.ts
index d2f27179..94694b2a 100644
--- a/packages/rstack/tests/config/reload-lib-config/index.test.ts
+++ b/packages/rstack/tests/config/reload-lib-config/index.test.ts
@@ -103,3 +103,54 @@ define.lib({
   await logHelper.expectLog('build completed, watching for changes...');
   await waitForFile(path.join(dist2, 'index.js'));
 });
+
+test('should restart lib watch build when an imported shared config changes', async ({
+  prepareDist,
+  execCliAsync,
+  logHelper,
+}) => {
+  const dist1 = await prepareDist('dist-import-1');
+  const dist2 = await prepareDist('dist-import-2');
+  const configFile = path.join(
+    import.meta.dirname,
+    'test-temp-shared.config.ts',
+  );
+  const importedFile = path.join(import.meta.dirname, 'test-temp-shared.ts');
+
+  await writeFile(
+    importedFile,
+    `export const sharedConfig = {
+  lib: {
+    output: { distPath: 'dist-import-1' },
+  },
+};
+`,
+  );
+  await writeFile(
+    configFile,
+    `import { define } from 'rstack';
+import { sharedConfig } from './test-temp-shared.ts';
+
+define.extends([sharedConfig]);
+`,
+  );
+
+  execCliAsync('lib --watch --config test-temp-shared.config.ts');
+  await logHelper.expectLog('build completed, watching for changes...');
+  await waitForFile(path.join(dist1, 'index.js'));
+  logHelper.clearLogs();
+
+  await writeFile(
+    importedFile,
+    `export const sharedConfig = {
+  lib: {
+    output: { distPath: 'dist-import-2' },
+  },
+};
+`,
+  );
+
+  await logHelper.expectLog('restarting build as test-temp-shared.ts changed');
+  await logHelper.expectLog('build completed, watching for changes...');
+  await waitForFile(path.join(dist2, 'index.js'));
+});