diff --git a/compose.yml b/compose.yml
index 9be74d3..1026256 100644
--- a/compose.yml
+++ b/compose.yml
@@ -43,8 +43,7 @@ services:
 
 volumes:
   db_data:
-  mytimetracker_build:
-    external: true
+  shared_jar_data:  # <- richtiges Volume referenziert
 
 networks:
   traefik: