diff --git a/plane-proxy/Dockerfile b/plane-proxy/Dockerfile
index 4a4e2aa..91b3a4b 100644
--- a/plane-proxy/Dockerfile
+++ b/plane-proxy/Dockerfile
@@ -1,3 +1,3 @@
 FROM makeplane/plane-proxy:stable
 
-RUN sed 's|http://plane-minio:9000/uploads/|http://s3_storage:9000/${BUCKET_NAME}|g' /etc/nginx/nginx.conf.template
+RUN sed -i 's|http://plane-minio:9000/uploads/|http://s3_storage:9000/${BUCKET_NAME}|g' /etc/nginx/nginx.conf.template