diff --git a/README.md b/README.md
index 10324953..b7718b41 100644
--- a/README.md
+++ b/README.md
@@ -11,9 +11,9 @@
 ## Usage
 
 ```ts
-import { defineUnplugin } from 'unplugin'
+import { createUnplugin } from 'unplugin'
 
-const plugin = defineUnplugin((options: UserOptions) => {
+const plugin = createUnplugin((options: UserOptions) => {
   return {
     name: 'my-first-unplugin',
     // webpack's id filter is outside of loader logic,
diff --git a/siroc.config.ts b/siroc.config.ts
deleted file mode 100644
index 694192b3..00000000
--- a/siroc.config.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-import { defineSirocConfig } from 'siroc'
-
-export default defineSirocConfig({
-
-})
diff --git a/src/define.ts b/src/define.ts
index def1cd74..200f70c0 100644
--- a/src/define.ts
+++ b/src/define.ts
@@ -2,7 +2,7 @@ import { getRollupPlugin } from './rollup'
 import { UnpluginInstance, UnpluginFactory } from './types'
 import { getWebpackPlugin } from './webpack'
 
-export function defineUnplugin<UserOptions = {}> (
+export function createUnplugin<UserOptions = {}> (
   factory: UnpluginFactory<UserOptions>
 ): UnpluginInstance<UserOptions> {
   return {