diff --git a/.github/workflows/angular-CI_CD.yml b/.github/workflows/angular-CI_CD.yml
index 359cfde..3df3501 100644
--- a/.github/workflows/angular-CI_CD.yml
+++ b/.github/workflows/angular-CI_CD.yml
@@ -57,8 +57,11 @@ jobs:
       - name: Test library
         run: yarn test:ci_cd
 
-      - name: Build demo
-        run: yarn build:demo
+      - name: Build demo - Step 01
+        run: yarn gh-pages:build
+
+      - name: Build demo - Step 02
+        run: yarn gh-pages:postbuild
 
       - name: Deploy to gh-pages branch
         uses: peaceiris/actions-gh-pages@v3