diff --git a/docker-compose.yml b/docker-compose.yml
index efc2964..75a199d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -24,7 +24,7 @@ services:
     depends_on:
       - db
     environment:
-      SPRING_DATASOURCE_URL: ${SPRING_DATASOURCE_URL}
+      SPRING_DATASOURCE_URL: jdbc:mysql://my-mysql:3306/mydb
       SPRING_DATASOURCE_USERNAME: ${SPRING_DATASOURCE_USERNAME}
       SPRING_DATASOURCE_PASSWORD: ${SPRING_DATASOURCE_PASSWORD}
     ports: