diff --git a/metadata/com.calcitem.sanmill.yml b/metadata/com.calcitem.sanmill.yml
index 479b2bb989..74c11ec664 100644
--- a/metadata/com.calcitem.sanmill.yml
+++ b/metadata/com.calcitem.sanmill.yml
@@ -2402,9 +2402,13 @@ Builds:
     versionCode: 3602
     commit: 9478f31c4944cd0119efcd30c168feb8f403ffb2
     subdir: src/ui/flutter_app
+    sudo:
+      - apt-get update
+      - apt-get install -y openjdk-17-jdk-headless
+      - update-java-alternatives -a
     output: build/app/outputs/flutter-apk/app-fdroid-release.apk
     srclibs:
-      - flutter@3.10.5
+      - flutter@3.13.4
     rm:
       - src/perfect
       - src/test