diff --git a/Dockerfile b/Dockerfile
index 6bc3d79..e2e7f64 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/sdk:10.0.302 AS build-env
+FROM mcr.microsoft.com/dotnet/sdk:10.0.400 AS build-env
 WORKDIR /app
 
 # Copy csproj and restore as distinct layers