diff --git a/ethcore/res/ethereum/poacore.json b/ethcore/res/ethereum/poacore.json
index 53b3c548c..9fc34d22a 100644
--- a/ethcore/res/ethereum/poacore.json
+++ b/ethcore/res/ethereum/poacore.json
@@ -34,11 +34,7 @@
 		"eip140Transition": "0x0",
 		"eip211Transition": "0x0",
 		"eip214Transition": "0x0",
-		"eip658Transition": "0x0",
-		"eip145Transition": 6843780,
-		"eip1014Transition": 6843780,
-		"eip1052Transition": 6843780,
-		"eip1283Transition": 6843780
+		"eip658Transition": "0x0"
 	},
 	"genesis": {
 		"seal": {