diff --git a/metadata/priv.wh201906.serialtest.yml b/metadata/priv.wh201906.serialtest.yml
index a5f8960525..e05b1bd48b 100644
--- a/metadata/priv.wh201906.serialtest.yml
+++ b/metadata/priv.wh201906.serialtest.yml
@@ -449,8 +449,11 @@ Builds:
     versionCode: 35
     commit: 37bc8dadf9166b2c9a64737139ed1cc222779c14
     sudo:
+      - echo "deb https://deb.debian.org/debian bullseye main" > /etc/apt/sources.list.d/bullseye.list
       - apt-get update
       - apt-get install -y build-essential wget
+      - apt-get install -y -t bullseye openjdk-11-jdk-headless
+      - update-java-alternatives --set java-1.11.0-openjdk-amd64
       - rm -rf /opt/android-sdk/platforms
       - sdkmanager "platforms;android-31"
     output: fdroid-build/android-build/build/outputs/apk/release/android-build-release-unsigned.apk