diff --git a/Dockerfile b/Dockerfile
index 711588b..3c2e089 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Build
-FROM golang:1.12-stretch AS build
+FROM golang:1.13-buster AS build
 WORKDIR /go/src/github.com/mpolden/echoip
 COPY . .
 # Must build without cgo because libc is unavailable in runtime image