diff --git a/static/uplugin-json-schema.json b/static/uplugin-json-schema.json
index 0eb2f66..66f3345 100755
--- a/static/uplugin-json-schema.json
+++ b/static/uplugin-json-schema.json
@@ -4,7 +4,7 @@
   "required": [
     "FileVersion",
     "Version",
-    "Plugins"
+    "GameVersion"
   ],
   "properties": {
     "CanContainContent": {
diff --git a/validation/validation.go b/validation/validation.go
index aa0432c..5a65014 100644
--- a/validation/validation.go
+++ b/validation/validation.go
@@ -456,7 +456,7 @@ func validateUPluginJSON(ctx context.Context, archive *zip.Reader, uPluginFile *
 		if file != nil {
 			splitName := strings.Split(file.Name, ".")
 			extension := splitName[len(splitName)-1]
-			if extension == "pak" {
+			if extension == "pak" || extension == "utoc" || extension == "ucas" {
 				modInfo.Objects = append(modInfo.Objects, ModObject{
 					Path: file.Name,
 					Type: "pak",