diff --git a/Dockerfile b/Dockerfile
index 56118b8..6643625 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # STEP 1 build executable binary
-FROM golang:1.17.1-alpine3.13@sha256:bd3c3710755f637c6ec64b317a22e58f048ddefe622fb03073935ee9073ff99f
+FROM golang:1.17.1-alpine3.13@sha256:bd3c3710755f637c6ec64b317a22e58f048ddefe622fb03073935ee9073ff99f AS builder
 
 ENV CADVISOR_VERSION="v0.38.8"