diff --git a/src/main/resources/blockchain.json b/src/main/resources/blockchain.json
index 22da87ac..92d4ad86 100644
--- a/src/main/resources/blockchain.json
+++ b/src/main/resources/blockchain.json
@@ -49,7 +49,7 @@
 	},
 	"featureTriggers": {
 		"atFindNextTransactionFix": 275000,
-		"newBlockSigHeight": 999999
+		"newBlockSigHeight": 320000
 	},
 	"genesisInfo": {
 		"version": 4,