diff --git a/wfapi/Dockerfile b/wfapi/Dockerfile
index ac2a12e..5c84fd9 100644
--- a/wfapi/Dockerfile
+++ b/wfapi/Dockerfile
@@ -1,10 +1,10 @@
-FROM --platform=$TARGETPLATFORM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+FROM --platform=$TARGETPLATFORM mcr.microsoft.com/dotnet/aspnet:9.0 AS base
 USER $APP_UID
 WORKDIR /app
 EXPOSE 8080
 EXPOSE 8081
 
-FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:9.0 AS build
 ARG TARGETARCH
 ARG BUILD_CONFIGURATION=Release
 WORKDIR /src