diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 2178acc..33dd453 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -19,8 +19,6 @@ jobs:
           node-version: 22
 
       - uses: pnpm/action-setup@v4
-        with:
-          version: 9
 
       - name: Get pnpm store directory
         shell: bash
diff --git a/package.json b/package.json
index 52c3829..006768b 100644
--- a/package.json
+++ b/package.json
@@ -1,4 +1,5 @@
 {
+  "packageManager": "pnpm@11.9.0",
   "devDependencies": {
     "typescript": "^5.9.3",
     "vitepress": "^2.0.0-alpha.17",