diff --git a/payload-schemas/schemas/delete/event.schema.json b/payload-schemas/schemas/delete/event.schema.json
index 1d9bb3663..8b09cd28c 100644
--- a/payload-schemas/schemas/delete/event.schema.json
+++ b/payload-schemas/schemas/delete/event.schema.json
@@ -5,7 +5,7 @@
   "required": ["ref", "ref_type", "pusher_type", "repository", "sender"],
   "properties": {
     "ref": { "type": "string" },
-    "ref_type": { "type": "string" },
+    "ref_type": { "type": "string", "enum": ["tag", "branch"] },
     "pusher_type": { "type": "string" },
     "repository": { "$ref": "common/repository.schema.json" },
     "sender": { "$ref": "common/user.schema.json" },
diff --git a/schema.d.ts b/schema.d.ts
index d593f8317..d4976cc02 100644
--- a/schema.d.ts
+++ b/schema.d.ts
@@ -1651,7 +1651,7 @@ export interface CreateEvent {
 }
 export interface DeleteEvent {
   ref: string;
-  ref_type: string;
+  ref_type: "tag" | "branch";
   pusher_type: string;
   repository: Repository;
   sender: User;