diff --git a/metadata/de.syss.MifareClassicTool.yml b/metadata/de.syss.MifareClassicTool.yml
index 5ceda12006..69b17da317 100644
--- a/metadata/de.syss.MifareClassicTool.yml
+++ b/metadata/de.syss.MifareClassicTool.yml
@@ -398,6 +398,10 @@ Builds:
     versionCode: 63
     commit: 2f61bb7e0ee52ce6bc61fcaafbdb61565fc7c82b
     subdir: Mifare Classic Tool/app
+    sudo:
+      - apt-get update
+      - apt-get install -y openjdk-17-jdk-headless
+      - update-java-alternatives -a
     gradle:
       - yes
     rm: