diff --git a/Dockerfile b/Dockerfile
index 654a08c3..857907e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Use the official Go image as the base image
-FROM golang:1.20 AS builder
+FROM golang:1.21 AS builder
 
 # Set the working directory
 WORKDIR /ko-app