diff --git a/.gitea/workflows/gitea-ci.yml b/.gitea/workflows/gitea-ci.yml
index f13fbbd..4dd2c1f 100644
--- a/.gitea/workflows/gitea-ci.yml
+++ b/.gitea/workflows/gitea-ci.yml
@@ -7,7 +7,7 @@ on:
       - v*
 jobs:
   ci:
-    runs-on: ubuntu-latest
+    runs-on: eclipse-temurin:21
     steps:
       - name: Checkout the code.
         uses: actions/checkout@v4