diff --git a/Dockerfile b/Dockerfile
index f6dae398..149e116f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.13.8-alpine AS build
+FROM golang:1.14.0-alpine AS build
 MAINTAINER shunsuke maeda <duck8823@gmail.com>
 
 RUN apk --update add --no-cache alpine-sdk ca-certificates \