diff --git a/backend/Dockerfile b/backend/Dockerfile
index 12f2319..a567944 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -1,11 +1,11 @@
-FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS base
 RUN apt-get update && apt-get install -y curl
 USER $APP_UID
 WORKDIR /app
 EXPOSE 5000
 EXPOSE 5001
 
-FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
 ARG BUILD_CONFIGURATION=Release
 WORKDIR /src
 COPY ["src/WebAPI/WebAPI.csproj", "WebAPI/"]