diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index b6ba650..4cf5ea7 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -34,6 +34,8 @@ jobs:
         with:
           node-version: 20
           cache: 'pnpm'
+      - name: Install pnpm
+        run: npm install -g pnpm
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
       - name: Build