diff --git a/Dockerfile b/Dockerfile
index 8cd0de8e..6138841a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.13.1-alpine AS build
+FROM golang:1.13.3-alpine AS build
 MAINTAINER shunsuke maeda <duck8823@gmail.com>
 
 RUN apk --update add --no-cache alpine-sdk ca-certificates \