diff --git a/src/backend/WebApi/Dockerfile b/src/backend/WebApi/Dockerfile
index 1136fcd..633e259 100644
--- a/src/backend/WebApi/Dockerfile
+++ b/src/backend/WebApi/Dockerfile
@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/aspnet:8.0-alpine AS base
+FROM mcr.microsoft.com/dotnet/aspnet:9.0-alpine AS base
 WORKDIR /app
 RUN apk add --no-cache icu-libs
 ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=false