diff --git a/Dockerfile b/Dockerfile
index 9741be8..e2be54b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@ RUN set -ex; \
     npm run build:production; \
     mv dist /dist;
 
-FROM mcr.microsoft.com/dotnet/sdk:6.0@sha256:c8fdd06e430de9f4ddd066b475ea350d771f341b77dd5ff4c2fafa748e3f2ef2 as builder
+FROM mcr.microsoft.com/dotnet/sdk:9.0@sha256:7f8e8b1514a2eeccb025f1e9dd554e191b21afa7f43f8321b7bd2009cdd59a1d as builder
 
 # renovate: datasource=github-tags depName=jellyfin/jellyfin versioning=semver
 ENV JELLYFIN_VERSION v10.8.13