diff --git a/Dockerfile b/Dockerfile
index 2a60094..4074390 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21-alpine3.18@sha256:53d0118d0084bf81c3f060e2736eeb82702a0a1891ac7dcd733ebbf02bcc2ec5 AS builder
+FROM golang:1.21-alpine3.18@sha256:96a8a701943e7eabd81ebd0963540ad660e29c3b2dc7fb9d7e06af34409e9ba6 AS builder
 
 WORKDIR /corn-util
 COPY go.mod go.sum ./