diff --git a/packages/ebec/src/module.ts b/packages/ebec/src/module.ts
index 6285ea3..f863460 100644
--- a/packages/ebec/src/module.ts
+++ b/packages/ebec/src/module.ts
@@ -5,7 +5,7 @@
  * view the LICENSE file that was distributed with this source code.
  */
 
-import { Options } from './type';
+import type { Options } from './type';
 import { buildMessage, buildOptions, hasOwnProperty } from './utils';
 
 export class BaseError extends Error {
diff --git a/packages/ebec/src/utils/message.ts b/packages/ebec/src/utils/message.ts
index 4705455..87430d8 100644
--- a/packages/ebec/src/utils/message.ts
+++ b/packages/ebec/src/utils/message.ts
@@ -5,7 +5,7 @@
  * view the LICENSE file that was distributed with this source code.
  */
 
-import { Options } from '../type';
+import type { Options } from '../type';
 
 export function buildMessage(
     data?: string | Error | Options,
diff --git a/packages/ebec/src/utils/options.ts b/packages/ebec/src/utils/options.ts
index 31d7dbd..89732ac 100644
--- a/packages/ebec/src/utils/options.ts
+++ b/packages/ebec/src/utils/options.ts
@@ -6,7 +6,7 @@
  */
 
 import { merge } from 'smob';
-import { Options } from '../type';
+import type { Options } from '../type';
 
 /**
  * Deep merge two objects.
diff --git a/packages/ebec/test/unit/module.spec.ts b/packages/ebec/test/unit/module.spec.ts
index 81d6e14..f61b253 100644
--- a/packages/ebec/test/unit/module.spec.ts
+++ b/packages/ebec/test/unit/module.spec.ts
@@ -5,7 +5,8 @@
  * view the LICENSE file that was distributed with this source code.
  */
 
-import { BaseError, Options } from '../../src';
+import type { Options } from '../../src';
+import { BaseError } from '../../src';
 
 describe('src/module.ts', () => {
     it('should create instance with message', () => {
diff --git a/packages/ebec/test/unit/utils/error-options.spec.ts b/packages/ebec/test/unit/utils/error-options.spec.ts
index 96de7bd..c1183bc 100644
--- a/packages/ebec/test/unit/utils/error-options.spec.ts
+++ b/packages/ebec/test/unit/utils/error-options.spec.ts
@@ -5,8 +5,9 @@
  * view the LICENSE file that was distributed with this source code.
  */
 
+import type { Options } from '../../../src';
 import {
-    BaseError, Options, buildOptions, mergeOptions,
+    BaseError, buildOptions, mergeOptions,
 } from '../../../src';
 
 describe('src/utils/error-options.ts', () => {