diff --git a/Electricity.Dockerfile b/Electricity.Dockerfile
index 694836e..3021cf6 100644
--- a/Electricity.Dockerfile
+++ b/Electricity.Dockerfile
@@ -1,6 +1,6 @@
 ARG PROJECT=ProjectOrigin.Electricity
 
-FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:8.0.404 AS build
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:9.0.101 AS build
 ARG PROJECT
 
 WORKDIR /builddir