diff --git a/.github/workflows/main_ci.yml b/.github/workflows/main_ci.yml
index 820b25c6c..29d1ca9f5 100644
--- a/.github/workflows/main_ci.yml
+++ b/.github/workflows/main_ci.yml
@@ -143,4 +143,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v2
+        uses: actions/deploy-pages@v4