diff --git a/.gitea/workflows/android-build.yml b/.gitea/workflows/android-build.yml
index 06d5d96..27df0da 100644
--- a/.gitea/workflows/android-build.yml
+++ b/.gitea/workflows/android-build.yml
@@ -18,11 +18,11 @@ jobs:
         uses: actions/checkout@v4
 
       # ── 2. Java ──────────────────────────────────────────────────────────────
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: temurin
-          java-version: '17'
+          java-version: '21'
 
       # ── 3. Node.js ───────────────────────────────────────────────────────────
       - name: Set up Node 22