diff --git a/app/pages/contents-create/index.tsx b/app/pages/contents-create/index.tsx
index d5c082c..3ebb5e6 100644
--- a/app/pages/contents-create/index.tsx
+++ b/app/pages/contents-create/index.tsx
@@ -25,7 +25,7 @@ export const contentSchema = z.object({
         .optional()
         .nullable(),
     )
-    .refine((data) => !!data, {
+    .refine((data) => data.length, {
       message: 'Please select a category',
     }),
   tags: z