diff --git a/docker-compose.yml b/docker-compose.yml
index a725bc4..7b8927e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -33,6 +33,10 @@
     build: .
     restart: unless-stopped
     env_file: .env
+    # gnexus-auth.local прописан в /etc/hosts хоста — в контейнере ведём его на host-gateway.
+    # Убрать, когда synapse и gnexus-auth разъезжаются по разным хостам.
+    extra_hosts:
+      - "gnexus-auth.local:host-gateway"
     environment:
       DATABASE_URL: ${DATABASE_URL:-postgresql+psycopg://${POSTGRES_USER:-synapse}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB:-synapse}}
       REDIS_URL: ${REDIS_URL:-redis://redis:6379/0}
@@ -48,6 +52,8 @@
     build: .
     restart: unless-stopped
     env_file: .env
+    extra_hosts:
+      - "gnexus-auth.local:host-gateway"
     environment:
       DATABASE_URL: ${DATABASE_URL:-postgresql+psycopg://${POSTGRES_USER:-synapse}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB:-synapse}}
       REDIS_URL: ${REDIS_URL:-redis://redis:6379/0}