diff --git a/Dockerfile b/Dockerfile
index 0f42e9d..92c9715 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # === Build Stage ===
-FROM mcr.microsoft.com/dotnet/sdk:10.0.301 AS build
+FROM mcr.microsoft.com/dotnet/sdk:10.0.400 AS build
 WORKDIR /src
 
 # Copy solution and project files for layer caching