diff --git a/build/params_mainnet.go b/build/params_mainnet.go
index 883288d00..ea3844d9d 100644
--- a/build/params_mainnet.go
+++ b/build/params_mainnet.go
@@ -87,7 +87,7 @@ const UpgradeSkyrHeight = 1960320
 const UpgradeSharkHeight = 2383680
 
 // ??????????????
-var UpgradeHyggeHeight = abi.ChainEpoch(math.MaxInt64 - 2)
+var UpgradeHyggeHeight = abi.ChainEpoch(math.MaxInt64 - 3)
 
 // ??????????????
 var UpgradeHyperspaceNV19Height = abi.ChainEpoch(math.MaxInt64 - 2)