diff --git a/Dockerfile b/Dockerfile
index edc7110..ffc68d9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ ARG             VCS_REF
 ARG             VERSION
 
 # build
-FROM            golang:1.18.1-alpine as builder
+FROM            golang:1.20.1-alpine as builder
 RUN             apk add --no-cache git gcc musl-dev make
 ENV             GO111MODULE=on
 WORKDIR         /go/src/moul.io/prefix