diff --git a/metadata/org.fsociety.vernet.yml b/metadata/org.fsociety.vernet.yml
index 9efe18ff37..27c9f4e0c3 100644
--- a/metadata/org.fsociety.vernet.yml
+++ b/metadata/org.fsociety.vernet.yml
@@ -98,17 +98,24 @@ Builds:
   - versionName: 1.0.1
     versionCode: 11
     commit: cb6fb0448aa526754ba2bc7bba269550c9da4f22
+    sudo:
+      - apt-get update || apt-get update
+      - apt-get install -y openjdk-11-jdk-headless
+      - update-alternatives --auto java
     output: build/app/outputs/flutter-apk/app-fdroid-release.apk
     srclibs:
-      - flutter@2.2.1
+      - flutter@3.0.5
     rm:
       - .vscode
       - ios
+      - linux
+      - macos
       - test
       - web
     build:
       - $$flutter$$/bin/flutter config --no-analytics
       - $$flutter$$/bin/flutter packages pub get
+      - $$flutter$$/bin/flutter packages pub run build_runner build --delete-conflicting-outputs
       - $$flutter$$/bin/flutter build apk --flavor fdroid
 
 AutoUpdateMode: Version