diff --git a/asset/mainnet/app.toml b/asset/mainnet/app.toml
index 91beaf351..d802464d1 100644
--- a/asset/mainnet/app.toml
+++ b/asset/mainnet/app.toml
@@ -67,6 +67,8 @@ FixDoubleSignChainIdHeight = 9223372036854775807
 BEP171Height = 310182000
 #Block height of BEP126 upgrade
 BEP126Height = 321213000
+# Block height of BEP255 upgrade
+BEP255Height = 328088888
 
 [addr]
 # Bech32PrefixAccAddr defines the Bech32 prefix of an account's address