diff --git a/ethcore/res/ethereum/ropsten.json b/ethcore/res/ethereum/ropsten.json
index 5aca6b2cbdc..82709320b3d 100644
--- a/ethcore/res/ethereum/ropsten.json
+++ b/ethcore/res/ethereum/ropsten.json
@@ -12,7 +12,7 @@
 				"eip100bTransition": 1700000,
 				"eip649Transition": 1700000,
 				"eip649Reward": "0x29A2241AF62C0000",
-				"eip1234Transition": 4200000,
+				"eip1234Transition": 4230000,
 				"eip1234Reward": "0x1BC16D674EC80000"
 			}
 		}
@@ -38,10 +38,10 @@
 		"eip211Transition": 1700000,
 		"eip214Transition": 1700000,
 		"eip658Transition": 1700000,
-		"eip145Transition": 4200000,
-		"eip1014Transition": 4200000,
-		"eip1052Transition": 4200000,
-		"eip1283Transition": 4200000
+		"eip145Transition": 4230000,
+		"eip1014Transition": 4230000,
+		"eip1052Transition": 4230000,
+		"eip1283Transition": 4230000
 	},
 	"genesis": {
 		"seal": {