diff --git a/collection/uni-cms-articles/collection.json b/collection/uni-cms-articles/collection.json
index 3bd3708..17f0337 100644
--- a/collection/uni-cms-articles/collection.json
+++ b/collection/uni-cms-articles/collection.json
@@ -160,6 +160,14 @@
         "forceDefaultValue": {
           "$env": "clientIP"
         }
+      },
+      "preview_secret": {
+        "bsonType": "string",
+        "description": "文章预览密钥"
+      },
+      "preview_expired": {
+        "bsonType": "timestamp",
+        "description": "文章预览过期时间"
       }
     }
   },
diff --git a/collection/uni-cms-articles/schema.json b/collection/uni-cms-articles/schema.json
index 03394bc..d4f2243 100644
--- a/collection/uni-cms-articles/schema.json
+++ b/collection/uni-cms-articles/schema.json
@@ -159,6 +159,14 @@
       "forceDefaultValue": {
         "$env": "clientIP"
       }
+    },
+    "preview_secret": {
+      "bsonType": "string",
+      "description": "文章预览密钥"
+    },
+    "preview_expired": {
+      "bsonType": "timestamp",
+      "description": "文章预览过期时间"
     }
   }
 }