diff --git a/backend/src/ee/routes/v1/project-role-router.ts b/backend/src/ee/routes/v1/project-role-router.ts
index acf34cb3b..f1ee79481 100644
--- a/backend/src/ee/routes/v1/project-role-router.ts
+++ b/backend/src/ee/routes/v1/project-role-router.ts
@@ -315,6 +315,8 @@ export const registerProjectRoleRouter = async (server: FastifyZodProvider) => {
             memberships: z
               .object({
                 id: z.string(),
+                actorGroupId: z.string().nullish(),
+                actorUserId: z.string().nullish(),
                 roles: z
                   .object({
                     role: z.string()