diff --git a/lib/config/presets/internal/monorepo.ts b/lib/config/presets/internal/monorepo.ts
index da775f3a78fbe3c41dd29c79a790f5d19f04d0e0..466355a7c6d41001b7472930332442126e218f8c 100644
--- a/lib/config/presets/internal/monorepo.ts
+++ b/lib/config/presets/internal/monorepo.ts
@@ -465,6 +465,8 @@ const repoGroups = {
   'telus-tds': 'https://github.com/telusdigital/tds',
   'telus-tds-core': 'https://github.com/telus/tds-core',
   'temporalio-ts': 'https://github.com/temporalio/sdk-typescript',
+  'testcontainers-dotnet':
+    'https://github.com/testcontainers/testcontainers-dotnet',
   'testcontainers-go': 'https://github.com/testcontainers/testcontainers-go',
   'testcontainers-java':
     'https://github.com/testcontainers/testcontainers-java',