diff --git a/Dockerfile b/Dockerfile
index 09a1f6482..66c50268c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # First stage container
-FROM golang:1.18.10-alpine3.17 AS builder
+FROM golang:1.20-alpine3.18 AS builder
 RUN apk add --no-cache git ca-certificates gcc musl-dev libc-dev pkgconfig
 # gcc is for github.com/mattn/go-sqlite3
 # ADD . $GOPATH/src/github.com/c9s/bbgo
diff --git a/go.mod b/go.mod
index 57f0bf099..ff2d965e5 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@
 
 module github.com/c9s/bbgo
 
-go 1.18
+go 1.20
 
 require (
 	github.com/DATA-DOG/go-sqlmock v1.5.0