diff --git a/rules/singbox/salem@cn.json b/rules/singbox/salem@cn.json
index 3605ab5..9fc9627 100644
--- a/rules/singbox/salem@cn.json
+++ b/rules/singbox/salem@cn.json
@@ -18,9 +18,9 @@
       ],
       "port": 
       [
-        "22",
-        "17000",
-        "18000"
+        22,
+        17000,
+        18000
       ]
     }
   ]