diff --git a/.gitea/workflows/pages-deploy.yaml b/.gitea/workflows/pages-deploy.yaml
index 31d147b..a7ec0e6 100644
--- a/.gitea/workflows/pages-deploy.yaml
+++ b/.gitea/workflows/pages-deploy.yaml
@@ -31,6 +31,8 @@ jobs:
   # Build job
   build:
     runs-on: ubuntu-22.04
+    env:
+      RUBY_VERSION: "3.3.5"
     steps:
       - name: Checkout
         uses: actions/checkout@v4