diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index 14db30e..0000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 88955f8..e68eab2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,5 +35,8 @@ jobs:
       - name: Build
         run: pnpm build -a
 
+      - name: Build zip
+        run: pnpm build:zip
+
       - name: Test
         run: pnpm test
diff --git a/.gitignore b/.gitignore
index 6b699e1..2f28064 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 node_modules
 dist
 .eslintcache
+.DS_Store
+.idea
diff --git a/scripts/build-zip.ts b/scripts/build-zip.ts
index 0bfe792..5f23b1a 100644
--- a/scripts/build-zip.ts
+++ b/scripts/build-zip.ts
@@ -25,7 +25,11 @@ function generateZip(inputPath: string, outputPath: string) {
 
     const start = Date.now();
     JSZip()
-      .file(inputName, fs.createReadStream(inputPath))
+      .file(inputName, fs.createReadStream(inputPath), {
+        compressionOptions: {
+          level: 9,
+        },
+      })
       .generateNodeStream({ type: 'nodebuffer', streamFiles: true })
       .pipe(fs.createWriteStream(outputPath))
       .on('finish', (result) => {
diff --git a/src/.DS_Store b/src/.DS_Store
deleted file mode 100644
index 6958d33..0000000
Binary files a/src/.DS_Store and /dev/null differ
diff --git a/src/core/adapter.ts b/src/adapter.ts
similarity index 98%
rename from src/core/adapter.ts
rename to src/adapter.ts
index 63f89d6..2943e9d 100644
--- a/src/core/adapter.ts
+++ b/src/adapter.ts
@@ -4,8 +4,8 @@ import {
   isPlainObject,
   isString,
   isUndefined,
-} from '../helpers/is';
-import { assert, throwError } from '../helpers/utils';
+} from './helpers/is';
+import { assert, throwError } from './helpers/utils';
 import {
   AxiosProgressCallback,
   AxiosRequestConfig,
@@ -14,7 +14,7 @@ import {
   AxiosRequestHeaders,
   AxiosResponse,
   AxiosResponseError,
-} from './Axios';
+} from './core/Axios';
 
 export type AxiosAdapterRequestType = 'request' | 'download' | 'upload';
 
diff --git a/src/axios.ts b/src/axios.ts
index b712553..f4b1aea 100644
--- a/src/axios.ts
+++ b/src/axios.ts
@@ -1,4 +1,4 @@
-import { AxiosAdapter, createAdapter, AxiosPlatform } from './core/adapter';
+import { AxiosAdapter, createAdapter, AxiosPlatform } from './adapter';
 import Axios, {
   AxiosConstructor,
   AxiosRequestConfig,
diff --git a/src/core/Axios.ts b/src/core/Axios.ts
index 2f90bc0..9ababd2 100644
--- a/src/core/Axios.ts
+++ b/src/core/Axios.ts
@@ -4,7 +4,7 @@ import {
   AxiosAdapterRequestMethod,
   AxiosAdapter,
   AxiosAdapterTask,
-} from './adapter';
+} from '../adapter';
 import { CancelToken } from './cancel';
 import dispatchRequest from './dispatchRequest';
 import InterceptorManager from './InterceptorManager';
diff --git a/src/core/createError.ts b/src/core/createError.ts
index aa23711..bd2394f 100644
--- a/src/core/createError.ts
+++ b/src/core/createError.ts
@@ -1,4 +1,4 @@
-import { AxiosAdapterTask } from './adapter';
+import { AxiosAdapterTask } from '../adapter';
 import { AxiosRequestConfig, AxiosResponse, AxiosResponseError } from './Axios';
 
 export type AxiosErrorResponse = AxiosResponse | AxiosResponseError;
diff --git a/src/core/generateType.ts b/src/core/generateType.ts
index cee06ee..632a286 100644
--- a/src/core/generateType.ts
+++ b/src/core/generateType.ts
@@ -1,5 +1,5 @@
 import { toLowerCase } from '../helpers/utils';
-import { AxiosAdapterRequestType } from './adapter';
+import { AxiosAdapterRequestType } from '../adapter';
 import { AxiosRequestConfig, AxiosRequestMethodAlias } from './Axios';
 
 export function generateType(
diff --git a/src/core/request.ts b/src/core/request.ts
index 146619f..2a43818 100644
--- a/src/core/request.ts
+++ b/src/core/request.ts
@@ -4,7 +4,7 @@ import {
   AxiosAdapterRequestConfig,
   AxiosAdapterRequestMethod,
   AxiosAdapterTask,
-} from './adapter';
+} from '../adapter';
 import {
   AxiosProgressCallback,
   AxiosRequestConfig,
diff --git a/src/defaults.ts b/src/defaults.ts
index e2224fc..67e8510 100644
--- a/src/defaults.ts
+++ b/src/defaults.ts
@@ -1,4 +1,4 @@
-import { getAdapterDefault } from './core/adapter';
+import { getAdapterDefault } from './adapter';
 import { AxiosRequestConfig } from './core/Axios';
 
 const defaults: AxiosRequestConfig = {
diff --git a/src/helpers/is.ts b/src/helpers/is.ts
index 299ebce..6f20db0 100644
--- a/src/helpers/is.ts
+++ b/src/helpers/is.ts
@@ -16,7 +16,8 @@ export function isEmptyObject(value: any): value is object {
   return isPlainObject(value) && Object.keys(value).length === 0;
 }
 
-export function isFunction<T extends () => void>(value: any): value is T {
+// eslint-disable-next-line @typescript-eslint/ban-types
+export function isFunction<T extends Function>(value: any): value is T {
   return typeof value === 'function';
 }
 
diff --git a/src/helpers/utils.ts b/src/helpers/utils.ts
index 47dec98..02a01cf 100644
--- a/src/helpers/utils.ts
+++ b/src/helpers/utils.ts
@@ -1,6 +1,6 @@
 import { isPlainObject, isString } from './is';
 
-export function deepMerge<T = unknown>(...objs: T[]): T {
+export function deepMerge<T extends AnyObject>(...objs: T[]): T {
   const result: AnyObject = {};
 
   objs.forEach((obj: AnyObject) =>
@@ -53,7 +53,7 @@ export function throwError(msg: string): void {
   throw new Error(`[axios-miniprogram]: ${msg}`);
 }
 
-export function toLowerCase<T extends string>(value: unknown, defaultValue: T): T {
+export function toLowerCase<T extends string>(value: any, defaultValue: T): T {
   if (!isString(value)) {
     value = defaultValue;
   }
@@ -61,7 +61,7 @@ export function toLowerCase<T extends string>(value: unknown, defaultValue: T):
   return value.toLowerCase() as T;
 }
 
-export function toUpperCase<T extends string>(value: unknown, defaultValue: T): T {
+export function toUpperCase<T extends string>(value: any, defaultValue: T): T {
   if (!isString(value)) {
     value = defaultValue;
   }
diff --git a/src/index.ts b/src/index.ts
index 59dc48f..a500da1 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -10,6 +10,6 @@ export type {
   AxiosAdapterRequestConfig,
   AxiosAdapter,
   AxiosPlatform,
-} from './core/adapter';
+} from './adapter';
 export type { AxiosInstance, AxiosStatic } from './axios';
 export default axios;