diff --git a/.gitea/workflows/test.yaml b/.gitea/workflows/test.yaml
index 82391ae..62fc56b 100644
--- a/.gitea/workflows/test.yaml
+++ b/.gitea/workflows/test.yaml
@@ -14,6 +14,8 @@ jobs:
       with:
         node-version: '24'
     - uses: pnpm/action-setup@v4
+      with:
+        version: 11
     - run: pnpm install --frozen-lockfile
       shell: bash
     - run: pnpm test
diff --git a/package.json b/package.json
index 7e8ff24..83ae18e 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "0.2.1",
   "description": "Deploys screeps code to the official game or a private server.",
   "type": "module",
+  "packageManager": "pnpm@11.21.0",
   "main": "index.js",
   "scripts": {
     "start": "node index.js",