diff --git a/build/params_2k.go b/build/params_2k.go
index bdf5898fd..63f7e70b4 100644
--- a/build/params_2k.go
+++ b/build/params_2k.go
@@ -27,8 +27,7 @@ const UpgradePersianHeight = 25
 const UpgradeOrangeHeight = 27
 const UpgradeClausHeight = 30
 
-// TODO
-const UpgradeActorsV3Height = -5
+const UpgradeActorsV3Height = 35
 
 var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 	0: DrandMainnet,