diff --git a/gotify/docker-compose.yml b/gotify/docker-compose.yml
index 7e90d34..5073476 100644
--- a/gotify/docker-compose.yml
+++ b/gotify/docker-compose.yml
@@ -10,3 +10,9 @@ services:
       - ${APPDATA_PATH}/gotify/config:/app/data
     ports:
       - ${PORT}:80
+    networks:
+      - frontend
+
+networks:
+  frontend:
+    external: true
diff --git a/healthchecks/docker-compose.yml b/healthchecks/docker-compose.yml
index 822d034..4fd7252 100644
--- a/healthchecks/docker-compose.yml
+++ b/healthchecks/docker-compose.yml
@@ -31,3 +31,9 @@ services:
     ports:
       - ${PORT}:8000
       - ${SMTP_PORT}:2525
+    networks:
+      - frontend
+
+networks:
+  frontend:
+    external: true
diff --git a/uptime-kuma/docker-compose.yml b/uptime-kuma/docker-compose.yml
index 5c4d27f..0d8d81f 100644
--- a/uptime-kuma/docker-compose.yml
+++ b/uptime-kuma/docker-compose.yml
@@ -7,3 +7,9 @@ services:
       - ${APPDATA_PATH}/uptime-kuma/config:/app/data
     ports:
       - ${PORT}:3001
+    networks:
+      - frontend
+
+networks:
+  frontend:
+    external: true