diff --git a/marketplace.txt b/marketplace.txt
index 6a3b6e5..71f8d05 100644
--- a/marketplace.txt
+++ b/marketplace.txt
@@ -12,6 +12,7 @@ x-EditorConfig.EditorConfig
 esbenp.prettier-vscode
 d-formulahendry.dotnet-test-explorer
 GitHub.remotehub
+hediet.vscode-drawio
 mikeburgh.xml-format
 d-ms-dotnettools.blazorwasm-companion
 d-ms-dotnettools.csharp