diff --git a/src/runtime/types/v5.ts b/src/runtime/types/v5.ts
index e63ab5fb..2b87629e 100644
--- a/src/runtime/types/v5.ts
+++ b/src/runtime/types/v5.ts
@@ -16,7 +16,7 @@ export interface Strapi5RequestParams {
   pagination?: PaginationByOffset | PaginationByPage
   filters?: Record<string, unknown>
   publicationState?: 'live' | 'preview'
-  locale?: StrapiLocale
+  locale?: StrapiLocale | null
 }
 
 export interface StrapiSystemFields {