diff --git a/alfa-client/apps/alfa-e2e/docker-compose.yml b/alfa-client/apps/alfa-e2e/docker-compose.yml
index 5dc3600cd2be974c373528861fef63636e9a605d..b7ccbadf1906d9a05a34392b9adae9e03dead89a 100644
--- a/alfa-client/apps/alfa-e2e/docker-compose.yml
+++ b/alfa-client/apps/alfa-e2e/docker-compose.yml
@@ -21,9 +21,6 @@
 # Die sprachspezifischen Genehmigungen und Beschränkungen
 # unter der Lizenz sind dem Lizenztext zu entnehmen.
 #
-
-version: '2.4'
-
 services:
   mongodb:
     image: mongo:4
@@ -36,8 +33,8 @@ services:
     image: docker.ozg-sh.de/vorgang-manager:${VORGANG_MANAGER_DOCKER_IMAGE:-snapshot-latest}
     platform: linux/amd64
     environment:
-      - GRPC_CLIENT_USER_MANAGER_ADDRESS=static://user-manager:9000
-      - GRPC_CLIENT_USER_MANAGER_NEGOTIATION_TYPE=PLAINTEXT
+      - GRPC_CLIENT_USER-MANAGER_ADDRESS=static://user-manager:9000
+      - GRPC_CLIENT_USER-MANAGER_NEGOTIATION_TYPE=PLAINTEXT
       - logging_level_org_springframework_security=${LOGGING_LEVEL:-WARN}
       - OZGCLOUD_ELASTICSEARCH_ADDRESS=elastic:9200
       - OZGCLOUD_ELASTICSEARCH_INDEX=e2e-test-index
@@ -117,7 +114,7 @@ services:
       - OZGCLOUD_KEYCLOAK_API_REALM=${KEYCLOAK_REALM:-by-e2e-local-dev}
       - OZGCLOUD_KEYCLOAK_API_USER=usermanagerapiuser
       - OZGCLOUD_KEYCLOAK_SYNC_CRON={OZGCLOUD_KEYCLOAK_SYNC_CRON:-disabled}
-      - OZGCLOUD_USER-MANAGER_URL=http://localhost:9092
+      - OZGCLOUD_USER_MANAGER_URL=http://localhost:9092
       - OZGCLOUD_USERSYNC_PERIOD=disabled
       - QUARKUS_GRPC_SERVER_SSL_CERTIFICATE=
       - QUARKUS_GRPC_SERVER_SSL_KEY=