diff --git a/lexicons/org/tangled/git/refs.json b/lexicons/org/tangled/git/refs.json
index 601fe49ce..278f9abb1 100644
--- a/lexicons/org/tangled/git/refs.json
+++ b/lexicons/org/tangled/git/refs.json
@@ -8,15 +8,17 @@
       "record": {
         "type": "object",
         "required": [
-          "digest",
-          "blocks"
+          "defaultBranch",
+          "refs"
         ],
         "properties": {
-          "digest": {
+          "defaultBranch": {
             "type": "string",
-            "description": "Digest hash of the git repository.\nNOTE: we might want to split this by refs/heads, refs/tags, refs/tngl/keep and so on."
+            "description": "Default branch name without refs/heads/ prefix.",
+            "examples": ["main", "master"],
+            "maxLength": 244
           },
-          "blocks": {
+          "refs": {
             "type": "bytes",
             "description": "List of git refs in `git show-ref` format.",
             "maxLength": 1000000