diff --git a/Dockerfile b/Dockerfile
index 84a20a0..5abbc01 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
-ARG GO_IMAGE=docker.io/golang:1.12.6-stretch
-ARG RELEASE_IMAGE=scratch
+ARG GO_IMAGE=docker.io/golang:1.16.4-buster
+ARG RELEASE_IMAGE=ubuntu:focal
 FROM ${GO_IMAGE} as builder
 
 SHELL [ "/bin/bash", "-cex" ]