diff --git a/service_definitions/public/gourichon_org/domain/compose.yaml b/service_definitions/public/gourichon_org/domain/compose.yaml
index d87ec0c..fad9a4a 100644
--- a/service_definitions/public/gourichon_org/domain/compose.yaml
+++ b/service_definitions/public/gourichon_org/domain/compose.yaml
@@ -6,6 +6,6 @@ services:
     build:
       context: .
     ports:
-      - "57053:53/udp"
-      - "57053:53"
+      - "${PORTPREFIX}7053:53/udp"
+      - "${PORTPREFIX}7053:53"
     restart: always