diff --git a/Dockerfile b/Dockerfile
index 778c987b..5613bb63 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM golang:1.21.6@sha256:7026fb72cfa9cc112e4d1bf4b35a15cac61a413d0252d06615808e7c987b33a7 as builder
+FROM --platform=$BUILDPLATFORM golang:1.21.6@sha256:ffbb0b828ddd29d539681b6749255989c394a5b11a2b460018c1bc87e0d93a52 as builder
 ARG TARGETPLATFORM
 WORKDIR /usr/src/aws-ses-pop3-server
 COPY go.mod .