diff --git a/app/Dockerfile b/app/Dockerfile
index 86abfec..31381f2 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -1,4 +1,6 @@
-FROM --platform=$BUILDPLATFORM dhi.io/dotnet:10.0.101-sdk-alpine3.22 AS builder
+# https://mcr.microsoft.com/product/dotnet/sdk
+# https://mcr.microsoft.com/v2/dotnet/sdk/tags/list
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:10.0.101-azurelinux3.0 AS builder
 ARG TARGETARCH
 WORKDIR /app
 COPY my-sample-app.csproj .
@@ -11,7 +13,9 @@ RUN dotnet publish my-sample-app.csproj \
     -o /my-sample-app \
     --no-restore
 
-FROM dhi.io/dotnet:10.0.1-alpine3.22
+# https://mcr.microsoft.com/product/dotnet/runtime
+# https://mcr.microsoft.com/v2/dotnet/runtime/tags/list
+FROM mcr.microsoft.com/dotnet/runtime:10.0.1-azurelinux3.0-distroless-extra
 WORKDIR /app
 COPY --from=builder /my-sample-app .
 EXPOSE 8080