diff --git a/compose.yaml b/compose.yaml
index 27a2b15..a635f57 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -6,7 +6,7 @@ services:
     image: docker.io/tomsquest/docker-radicale
     container_name: radicale
     ports:
-      - 127.0.0.1:5232:5232
+      - "${RADICALE_PORT:-5232}:5232"
     init: true
     read_only: true
     env_file: .env