diff --git a/Dockerfile b/Dockerfile
index d4bd0fd..0d14492 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@
 #
 # 作者: titor
 # 创建日期: 2026-04-15
-FROM golang:latest-alpine AS builder
+FROM golang:1.26-alpine AS builder
 
 # 设置工作目录
 WORKDIR /build
diff --git a/go.mod b/go.mod
index 3c67982..5ed99fa 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@
 // 用于在终端绘制各种 ASCII 图表的 MCP 服务
 module hub.gaomia.site/titor/ttychart-mcp
 
-go 1.25.0
+go 1.25
 
 require (
 	charm.land/lipgloss/v2 v2.0.2