diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index 4df66c9..6becaf5 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -68,8 +68,8 @@ services:
       context: ./docker/webhook
     container_name: ecert_webhook
     restart: always
-    environment:
-      WEBHOOK_SECRET: ${WEBHOOK_SECRET}
+    env_file:
+      - src/.env
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
       - /root/.ssh:/root/.ssh:ro