diff --git a/chain/network.go b/chain/network.go
index 3f301f5..68d60df 100644
--- a/chain/network.go
+++ b/chain/network.go
@@ -47,8 +47,8 @@ func Mainnet() (*consensus.Network, types.Block) {
 	n.HardforkFoundation.PrimaryAddress = parseAddr("053b2def3cbdd078c19d62ce2b4f0b1a3c5e0ffbeeff01280efb1f8969b2f5bb4fdc680f0807")
 	n.HardforkFoundation.FailsafeAddress = parseAddr("27c22a6c6e6645802a3b8fa0e5374657438ef12716d2205d3e866272de1b644dbabd53d6d560")
 
-	n.HardforkV2.AllowHeight = 1000000   // TBD
-	n.HardforkV2.RequireHeight = 1025000 // ~six months later
+	n.HardforkV2.AllowHeight = 513400   // March 10th, 2025 @ 6:00pm UTC
+	n.HardforkV2.RequireHeight = 526000 // June 6th, 2025 @ 6:00am UTC
 
 	b := types.Block{
 		Timestamp: n.HardforkOak.GenesisTimestamp,