diff --git a/conf/app.conf b/conf/app.conf
index 3b27d4d3c..4518f12db 100644
--- a/conf/app.conf
+++ b/conf/app.conf
@@ -189,7 +189,7 @@ dadaSourceID    = "73753"
 fnAppID = "6705486294797503379"
 fnAppSecret = "c1e6c280-e618-4103-9d0a-673bc54fb22e"
 fnCode = "iCN2gIftF1Ia9nG7720nyn"
-fnMerchantId= "5375691"
+fnMerchantId= "51658"
 fnCallbackURL = "http://callback.jxc4.com/fn/msg"
 
 weixinAppID  = "wxbf235770edaabc5c"