diff --git a/ethcore/res/ethereum/ropsten.json b/ethcore/res/ethereum/ropsten.json
index bddf5c008..21fd7386d 100644
--- a/ethcore/res/ethereum/ropsten.json
+++ b/ethcore/res/ethereum/ropsten.json
@@ -22,8 +22,8 @@
 		"maximumExtraDataSize": "0x20",
 		"minGasLimit": "0x1388",
 		"networkID" : "0x3",
-		"forkBlock": 641350,
-		"forkCanonHash": "0x8033403e9fe5811a7b6d6b469905915de1c59207ce2172cbcf5d6ff14fa6a2eb",
+		"forkBlock": 3383558,
+		"forkCanonHash": "0x6b4b80d65951375a70bc1ecf9a270d152dd355454d57869abbae2e42c213e0f3",
 		"maxCodeSize": 24576,
 		"maxCodeSizeTransition": 10,
 		"eip150Transition": 0,