diff --git a/lib/config/presets/internal/monorepo.ts b/lib/config/presets/internal/monorepo.ts
index 87bd0401e8318e924b9e5c980280fa87d064a05f..067985d84e097432a7861ba8c8aff27348b6b1c6 100644
--- a/lib/config/presets/internal/monorepo.ts
+++ b/lib/config/presets/internal/monorepo.ts
@@ -384,6 +384,7 @@ const repoGroups = {
     'https://github.com/nuxt/nuxt',
   ],
   okhttp: 'https://github.com/square/okhttp',
+  opencost: 'https://github.com/opencost/opencost',
   openiddict: 'https://github.com/openiddict/openiddict-core',
   'opentelemetry-dotnet':
     'https://github.com/open-telemetry/opentelemetry-dotnet',