diff --git a/src/app/AlwaysOn.HealthService/Dockerfile b/src/app/AlwaysOn.HealthService/Dockerfile
index 3185ec6d3..394d58445 100644
--- a/src/app/AlwaysOn.HealthService/Dockerfile
+++ b/src/app/AlwaysOn.HealthService/Dockerfile
@@ -5,7 +5,7 @@ COPY . ./
 RUN dotnet publish AlwaysOn.HealthService -c Release -o AlwaysOn.HealthService/out
 
 # Create application container
-FROM mcr.microsoft.com/dotnet/aspnet:8.0
+FROM mcr.microsoft.com/dotnet/aspnet:9.0
 # Update and upgrade
 RUN apt-get update && apt-get upgrade -y \
     && rm -rf /var/lib/apt/lists/*