diff --git a/node/demo_contract.go b/node/demo_contract.go
index d5fd690f5..7e6028321 100644
--- a/node/demo_contract.go
+++ b/node/demo_contract.go
@@ -194,7 +194,7 @@ func (node *Node) CreateTransactionForPickWinner() error {
 		toAddress,
 		0,
 		Amount,
-		params.TxGas*10,
+		params.TxGas*1000,
 		nil,
 		bytesData,
 	)