diff --git a/data/specialthanks-afd.xlsx b/data/specialthanks-afd.xlsx
index 75295ba..1cc2f95 100644
Binary files a/data/specialthanks-afd.xlsx and b/data/specialthanks-afd.xlsx differ
diff --git a/data/specialthanks-dun.xlsx b/data/specialthanks-dun.xlsx
index ae4504f..0e8e9de 100644
Binary files a/data/specialthanks-dun.xlsx and b/data/specialthanks-dun.xlsx differ
diff --git a/public/data/specialthanks.json b/public/data/specialthanks.json
index 5873328..4414823 100644
--- a/public/data/specialthanks.json
+++ b/public/data/specialthanks.json
@@ -2542,6 +2542,18 @@
         "group": 2,
         "name": "Mescaline茗零"
     },
+    {
+        "group": 2,
+        "name": "希希希土"
+    },
+    {
+        "group": 2,
+        "name": "食光者"
+    },
+    {
+        "group": 2,
+        "name": "稻谷之骨"
+    },
     {
         "group": 2,
         "name": "超级无敌暴龙战士"
@@ -4453,5 +4465,22 @@
     {
         "group": 2,
         "name": "泊彧"
+    },
+    {
+        "group": 2,
+        "name": "好真实这个人"
+    },
+    {
+        "group": 2,
+        "name": "马丁"
+    },
+    {
+        "group": 2,
+        "name": "什么时候修成正果"
+    },
+    {
+        "group": 1,
+        "name": "ethan.lang@wisdomhashrate.com",
+        "comment": "北京团队诚聘java、区块链相关工程师，加入我们吧！你的人生何须重开？"
     }
 ]
\ No newline at end of file
diff --git a/src/functions/util.js b/src/functions/util.js
index c502d26..d760223 100644
--- a/src/functions/util.js
+++ b/src/functions/util.js
@@ -1,6 +1,7 @@
 function clone(value) {
     switch(typeof value) {
         case 'object':
+            if(value === null) return null;
             if(Array.isArray(value)) return value.map(v=>clone(v));
             const newObj = {};
             for(const key in value) newObj[key] = clone(value[key]);