diff --git a/metadata/at.bitfire.davdroid.yml b/metadata/at.bitfire.davdroid.yml
index ea4a058dd6..d02d4500ad 100644
--- a/metadata/at.bitfire.davdroid.yml
+++ b/metadata/at.bitfire.davdroid.yml
@@ -1519,7 +1519,19 @@ Builds:
     gradle:
       - standard
 
+  - versionName: 4.0-ose
+    versionCode: 400000005
+    commit: 265d75b2902dd6d5d7dfd5f9066a1fda849df0d6
+    subdir: app
+    submodules: true
+    sudo:
+      - apt-get update || apt-get update
+      - apt-get install -y openjdk-11-jdk
+      - update-alternatives --auto java
+    gradle:
+      - standard
+
 AutoUpdateMode: Version v%v
 UpdateCheckMode: Tags ^v[0-9.]+-ose[0-9]*$
-CurrentVersion: 3.4.0.1-ose
-CurrentVersionCode: 304000100
+CurrentVersion: 4.0-ose
+CurrentVersionCode: 400000005