diff --git a/Dockerfile b/Dockerfile
index 1ba84fe6da8761907d4ae4b4b31864997b4d1340..7e51f6f1d1c72909845fe254b0ac8d1cd19c71d3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine as downloader
 RUN apk update
-RUN apk add -y curl
+RUN apk add curl
 
 ARG DOCKERCLI="docker-18.05.0-ce"