diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 45d9b8b..03a1fe1 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,7 +1,7 @@
 # Contributing
 
 See distributed tracing working group contributing
-[docs](https://github.com/w3c/distributed-tracing-wg/blob/master/CONTRIBUTING.md)
+[docs](https://github.com/w3c/distributed-tracing-wg/blob/main/CONTRIBUTING.md)
 for a general guidance.
 
 See [Registration Entry Requirements and Update
diff --git a/index.html b/index.html
index 4adfc61..0ea0568 100644
--- a/index.html
+++ b/index.html
@@ -43,7 +43,7 @@
 
           github: {
             repoURL: "https://github.com/w3c/trace-context-protocols-registry/",
-            branch: "master",
+            branch: "main",
           },
           otherLinks: [{
             key: 'Discussions',