diff --git a/Dockerfile b/Dockerfile
index bcd0af0..69e4724 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.18-alpine AS build
+FROM golang:1.20-alpine AS build
 
 WORKDIR /go/src/shioriko
 COPY . .