diff --git a/docker-compose.yaml b/docker-compose.yaml
index 0ff65ecf0..a2fbfb61e 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -22,3 +22,9 @@ services:
       - BLOCK_TIME=5s
     command: "start --pruning=nothing"
     restart: always
+    networks:
+      - testnet
+
+networks:
+  testnet:
+    external: true