diff --git a/docker-compose.yml b/docker-compose.yml
index a38b883..3895560 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,7 +4,7 @@ services:
       context: .
       dockerfile: Dockerfile
     ports:
-      - "{$PORT}:{$PORT}"
+      - "$PORT:$PORT"
     depends_on:
       - mailpit
     environment: