diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index a2f6098..0e535da 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -1,6 +1,6 @@
 {
     "name": ".NET in Codespaces",
-    "image": "mcr.microsoft.com/dotnet/sdk:8.0",
+    "image": "mcr.microsoft.com/dotnet/sdk:9.0",
     "features": {
         "ghcr.io/devcontainers/features/github-cli:1": {
             "version": "2"