diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 986f537..31b8dd0 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,5 +1,9 @@
 name: 'Test'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 on:
   pull_request:
     branches:
@@ -13,15 +17,13 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
-        with:
-          version: 8
       - name: Use Node.js
         uses: actions/setup-node@v6
         with:
           node-version-file: '.nvmrc'
           cache: 'pnpm'
       - name: Install dependencies
-        run: pnpm install
+        run: pnpm install --frozen-lockfile
       - name: Check with Prettier
         run: pnpm run format:check
       - name: Check with Astro
diff --git a/package.json b/package.json
index 11afce8..6d01381 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "type": "module",
   "version": "0.0.1",
   "private": true,
+  "packageManager": "pnpm@10.19.0",
   "engines": {
     "node": "24.19.0"
   },