diff --git a/build/params_calibnet.go b/build/params_calibnet.go
index ac6b3885f3b..2cc53925cd1 100644
--- a/build/params_calibnet.go
+++ b/build/params_calibnet.go
@@ -79,9 +79,10 @@ const UpgradeLightningHeight = 489094
 // 2023-04-21T16:00:00Z
 const UpgradeThunderHeight = UpgradeLightningHeight + 3120
 
-// 2023-11-07T13:00:00Z
+// 2023-10-19T13:00:00Z
 const UpgradeWatermelonHeight = 1013134
 
+// 2023-11-07T13:00:00Z
 const UpgradeWatermelonFixHeight = 1070494
 
 var SupportedProofTypes = []abi.RegisteredSealProof{
diff --git a/build/params_mainnet.go b/build/params_mainnet.go
index 71bd5598780..c607bcdd0d7 100644
--- a/build/params_mainnet.go
+++ b/build/params_mainnet.go
@@ -96,7 +96,7 @@ const UpgradeLightningHeight = 2809800
 const UpgradeThunderHeight = UpgradeLightningHeight + 2880*21
 
 // 2023-11-29T13:30:00Z
-const UpgradeWatermelonHeight = 3431940
+var UpgradeWatermelonHeight = abi.ChainEpoch(3431940)
 
 // This fix upgrade only ran on calibrationnet
 const UpgradeWatermelonFixHeight = -1