diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index ece1ee0..fcf3956 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -17,6 +17,8 @@ jobs:
         uses: actions/checkout@v3
 
       - uses: pnpm/action-setup@v3
+        with:
+          version: 9.0.1
 
       - name: Install Node.js
         uses: actions/setup-node@v4