diff --git a/app/Dockerfile b/app/Dockerfile
index e72d500..b84fd74 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -1,5 +1,5 @@
 # https://mcr.microsoft.com/product/dotnet/sdk
-FROM mcr.microsoft.com/dotnet/sdk:8.0.100-rc.1-alpine3.18-amd64@sha256:22d2de7f9568bc05083bd834b6fcfa0066dec6a62570b943ac98c9c56b7a372c as builder
+FROM mcr.microsoft.com/dotnet/sdk:8.0.100-rc.1-alpine3.18-amd64@sha256:a3ad792bb80cd122df21bb8a18c5422aa355740937f393f9621c3c6050f4c1e8 as builder
 RUN apk add clang build-base zlib-dev
 WORKDIR /app
 COPY my-sample-app.csproj .