diff --git a/build/Dockerfile b/build/Dockerfile
index c0c07a2..5fece61 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/sdk:9.0.203 AS builder
+FROM mcr.microsoft.com/dotnet/sdk:9.0.301 AS builder
 
 ARG HOMEASSISTANT__HOST
 ARG HOMEASSISTANT__PORT