diff --git a/metadata/de.geeksfactory.opacclient.yml b/metadata/de.geeksfactory.opacclient.yml
index d367fdba2d..e7215ad051 100644
--- a/metadata/de.geeksfactory.opacclient.yml
+++ b/metadata/de.geeksfactory.opacclient.yml
@@ -2722,6 +2722,26 @@ Builds:
     preassemble:
       - downloadJson
 
+  - versionName: 6.3.7
+    versionCode: 227
+    commit: 6.3.7
+    subdir: opacclient/opacapp
+    submodules: true
+    gradle:
+      - foss
+    srclibs:
+      - CWACAdapterFork@v1.0.1
+      - EndlessFork@v1.2.3
+    rm:
+      - opacclient/opacapp/libs/*.jar
+      - tools/bcprov-jdk15on-146.jar
+    prebuild:
+      - cp -fR $$CWACAdapterFork$$/src/com src/main/java/
+      - cp -fR $$EndlessFork$$/src/com src/main/java/
+      - sed -i -e '/adapter/d' -e '/endless/d' build.gradle
+    preassemble:
+      - downloadJson
+
 MaintainerNotes: |-
     Using commonsware maven dependencies adds READ_PHONE_STATE permission; building
     the source directly fixes this but might break more easily. Wait for next release
@@ -2729,5 +2749,5 @@ MaintainerNotes: |-
 
 AutoUpdateMode: Version %v
 UpdateCheckMode: Tags
-CurrentVersion: 6.3.5
-CurrentVersionCode: 225
+CurrentVersion: 6.3.7
+CurrentVersionCode: 227