diff --git a/params/util.go b/params/util.go
index 3ef018b91c..d8033f7d40 100644
--- a/params/util.go
+++ b/params/util.go
@@ -19,6 +19,6 @@ package params
 import "math/big"
 
 var (
-	TestNetHomesteadBlock = big.NewInt(494000)  // testnet homestead block
-	MainNetHomesteadBlock = big.NewInt(1150000) // mainnet homestead block
+	TestNetHomesteadBlock = big.NewInt(0)  // testnet homestead block
+	MainNetHomesteadBlock = big.NewInt(200000) // mainnet homestead block
 )