diff --git a/apps/website/postcss.config.js b/apps/website/postcss.config.js
new file mode 100644
index 0000000..57bd400
--- /dev/null
+++ b/apps/website/postcss.config.js
@@ -0,0 +1,7 @@
+// eslint-disable-next-line unicorn/prefer-module
+module.exports = {
+  plugins: {
+    autoprefixer: {},
+    tailwindcss: {},
+  },
+}
diff --git a/apps/website/postcss.config.mjs b/apps/website/postcss.config.mjs
deleted file mode 100644
index ebf881f..0000000
--- a/apps/website/postcss.config.mjs
+++ /dev/null
@@ -1,6 +0,0 @@
-export default {
-  plugins: {
-    autoprefixer: {},
-    tailwindcss: {},
-  },
-}
diff --git a/apps/website/tsconfig.json b/apps/website/tsconfig.json
index 9702880..2425817 100644
--- a/apps/website/tsconfig.json
+++ b/apps/website/tsconfig.json
@@ -24,13 +24,6 @@
       "~/*": ["./*"]
     }
   },
-  "include": [
-    "next-env.d.ts",
-    "**/*.ts",
-    "**/*.tsx",
-    ".next/types/**/*.ts",
-    "../../tools/**/*.ts",
-    "tailwind.config.ts"
-  ],
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts", "../../tools/**/*.ts"],
   "exclude": ["node_modules"]
 }
diff --git a/packages/tailwind-plugin-palette/package.json b/packages/tailwind-plugin-palette/package.json
index ea3e225..a952d34 100644
--- a/packages/tailwind-plugin-palette/package.json
+++ b/packages/tailwind-plugin-palette/package.json
@@ -19,7 +19,7 @@
     "./dist"
   ],
   "scripts": {
-    "build": "bunchee",
+    "build": "bunchee --external @material/material-color-utilities,culori",
     "dev": "bunchee -w"
   },
   "dependencies": {
@@ -30,8 +30,6 @@
     "tailwindcss": "^3.4.1"
   },
   "peerDependencies": {
-    "@material/material-color-utilities": ">=0.2.0",
-    "culori": ">=4.0.0",
     "tailwindcss": ">=3.4.0"
   },
   "publishConfig": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 81b5dc0..6690700 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -125,12 +125,6 @@ importers:
       '@color-kit/palette':
         specifier: workspace:*
         version: link:../palette
-      '@material/material-color-utilities':
-        specifier: '>=0.2.0'
-        version: 0.2.7
-      culori:
-        specifier: '>=4.0.0'
-        version: 4.0.1
     devDependencies:
       bunchee:
         specifier: ^4.4.8