diff --git a/.opensource/project.json b/.opensource/project.json
index 74e68f048..56484ef37 100644
--- a/.opensource/project.json
+++ b/.opensource/project.json
@@ -7,6 +7,7 @@
     "content": "README.md",
     "pages": [],
     "related": [
+        "firebase/firebase-admin-dotnet",
         "firebase/firebase-admin-go",
         "firebase/firebase-admin-node",
         "firebase/firebase-admin-python"