diff --git a/package.json b/package.json
index c4e62c270..5cf9bf442 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "build": "astro check && astro build",
     "preview": "astro preview",
     "astro": "astro",
-    "postinstall": "bun run setup.mjs",
+    "postinstall": "bun run setup.ts",
     "lunaria:build": "lunaria build",
     "lunaria:preview": "lunaria preview"
   },
diff --git a/setup.ts b/setup.ts
index 1e40fe3fc..af06c1a46 100644
--- a/setup.ts
+++ b/setup.ts
@@ -9,6 +9,7 @@ interface GitItem {
   branch?: string;
   folder?: string;
   install?: boolean;
+  degit?: boolean;
 }
 
 const gits: GitItem[] = [
@@ -26,6 +27,7 @@ const gits: GitItem[] = [
     repo: "tools",
     folder: "packages",
     install: false,
+    degit: true,
   },
 ];
 
@@ -40,6 +42,10 @@ for (const git of gits) {
   if (git.folder) {
     await $`mv ${git.name}/${git.folder}/* ${git.name} && rm -rf ${git.name}/${git.folder}`;
   }
+
+  if (git.degit) {
+    await $`find ${git.name} -name ".git" -type d -exec rm -rf {} +`;
+  }
 }
 
 const tools = (await $`ls -d tools/* | grep -v .github`.text())