diff --git a/docker-compose.yml b/docker-compose.yml
index 6d91d78..134196b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -50,5 +50,11 @@
 networks:
   simpleidnet:
     driver: bridge
+    ipam:
+      config:
+        - subnet: 10.12.14.16/29
   gerritnet:
     driver: bridge
+    ipam:
+      config:
+        - subnet: 10.12.14.24/29