diff --git a/Dockerfile b/Dockerfile
index 0c0eda6..e84b960 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21-alpine3.18@sha256:0247fcb931c2945cd129ce41cab7433867c8e99f76071276db69149d61ca0291 AS builder
+FROM golang:1.21-alpine3.18@sha256:cf559d07708d53bb69e7d79cd7f25cf5854a8a7290c98111a1c01bf39aa4f4f1 AS builder
 
 WORKDIR /corn-util
 COPY go.mod go.sum ./