diff --git a/Dockerfile b/Dockerfile
index 4b1f97e..d3deabe 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21-alpine3.18@sha256:bd9fba964e49218519393ce78402084de252dc51ad1a471abe3b16c0a23f1c23 AS builder
+FROM golang:1.21-alpine3.18@sha256:7fdfef9fb8674808f374632e3090605fef56a1e6c397cc3f7c451244eb46e253 AS builder
 
 WORKDIR /corn-util
 COPY go.mod go.sum ./