diff --git a/src/lib/validation.ts b/src/lib/validation.ts
index 2de0321..4658720 100644
--- a/src/lib/validation.ts
+++ b/src/lib/validation.ts
@@ -10,6 +10,7 @@ export const createPostSchema = z.object({
   slug: z.string().min(1).max(200).regex(/^[a-zA-Z0-9\u4e00-\u9fff_-]+$/),
   excerpt: z.string().max(500).optional().default(""),
   content: z.string().min(1),
+  coverImage: z.string().max(500).optional().default(""),
   date: z.string().min(1),
   category: z.string().min(1).max(50),
   tags: z.array(z.string().max(50)).max(20).default([]),