diff --git a/docs/reference/api/openapi.yaml b/docs/reference/api/openapi.yaml
index 19fd332..01cfc5f 100644
--- a/docs/reference/api/openapi.yaml
+++ b/docs/reference/api/openapi.yaml
@@ -319,6 +319,10 @@ components:
 
     Package:
       type: object
+      required:
+        - registryType
+        - identifier
+        - version
       properties:
         registryType:
           type: string