diff --git a/src/content.config.ts b/src/content.config.ts
index 41dcb49..5a3e627 100644
--- a/src/content.config.ts
+++ b/src/content.config.ts
@@ -8,8 +8,10 @@ const docs = defineCollection({
   schema: z.object({
     title: z.string().optional(),
     description: z.string().optional(),
+    tags: z.array(z.string()).optional(),
     // pubDate: z.coerce.date(),
-    // updatedDate: z.coerce.date().optional(),
+    createdAt: z.coerce.date().optional(),
+    updatedAt: z.coerce.date().optional(),
   }),
 });