diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index dfd4cf7..4df92af 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -25,7 +25,7 @@ jobs:
         shell: sh
 
       - name: Build website
-        run: devenv shell wasm-pack build --release && cd www && yarn run build
+        run: devenv shell wasm-pack build --release && cd www && yarn install --frozen-lockfile && yarn run build
 
       - name: Deploy to GitHub Pages
         uses: JamesIves/github-pages-deploy-action@v4