diff --git a/tutorials/pub-sub/csharp-subscriber/Dockerfile b/tutorials/pub-sub/csharp-subscriber/Dockerfile
index 744df6c6..fc2f1bf5 100644
--- a/tutorials/pub-sub/csharp-subscriber/Dockerfile
+++ b/tutorials/pub-sub/csharp-subscriber/Dockerfile
@@ -1,7 +1,7 @@
 # Note: we cannot do a staged dotnet docker build here for arm/arm64. 
 
 # Build runtime image
-FROM mcr.microsoft.com/dotnet/aspnet:6.0
+FROM mcr.microsoft.com/dotnet/aspnet:7.0
 WORKDIR /app
 COPY  /out .
 ENTRYPOINT ["dotnet", "csharp-subscriber.dll"]
\ No newline at end of file
diff --git a/tutorials/pub-sub/csharp-subscriber/csharp-subscriber.csproj b/tutorials/pub-sub/csharp-subscriber/csharp-subscriber.csproj
index 7a455c35..aee2c2f3 100644
--- a/tutorials/pub-sub/csharp-subscriber/csharp-subscriber.csproj
+++ b/tutorials/pub-sub/csharp-subscriber/csharp-subscriber.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
     <PropertyGroup>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net7.0</TargetFramework>
         <Nullable>enable</Nullable>
         <ImplicitUsings>enable</ImplicitUsings>
         <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>