diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 8cf3974..0f78cab 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -3,7 +3,7 @@
 {
 	"name": "Intro to .NET webdev",
 	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-	"image": "mcr.microsoft.com/devcontainers/dotnet:8.0",
+	"image": "mcr.microsoft.com/devcontainers/dotnet:9.0",
 
 	// Features to add to the dev container. More info: https://containers.dev/features.
   	"features": {},