diff --git a/build/Dockerfile b/build/Dockerfile
index 6f98e25..a33d405 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/sdk:8.0.303 AS builder
+FROM mcr.microsoft.com/dotnet/sdk:8.0.400 AS builder
 
 ARG HOMEASSISTANT__HOST
 ARG HOMEASSISTANT__PORT