diff --git a/Dockerfile b/Dockerfile
index 9d3448f..dca98b3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21-alpine3.18@sha256:a2043ef0528eeb3cb9884b703794ad472930e4dcd109490cddf8b5cf519efa17 AS builder
+FROM golang:1.21-alpine3.18@sha256:30a46e750f1b22656de03fa7d5e3225d6069cb4e80a4f62a770c97854d1a46d6 AS builder
 
 WORKDIR /corn-util
 COPY go.mod go.sum ./