diff --git a/Dockerfile b/Dockerfile
index 34a988f..1647bd8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ://microsoft.com AS base
+FROM mcr.microsoft.com/dotnet/aspnet:10.0 AS base
 WORKDIR /app
 EXPOSE 80
 EXPOSE 443
@@ -6,6 +6,7 @@ EXPOSE 443
 # Optional: Keep only if your API build explicitly requires Node compilation tasks
 FROM node:22-bookworm-slim AS node
 
+# --- FIX: Change 'aspnet' to 'sdk' here ---
 FROM ://microsoft.com AS build
 ARG TARGETARCH
 ENV DOTNET_CLI_TELEMETRY_OPTOUT=1 \