diff --git a/libevm/FeeStructure.cpp b/libevm/FeeStructure.cpp
index 1c1bf8a9e..58d756bae 100644
--- a/libevm/FeeStructure.cpp
+++ b/libevm/FeeStructure.cpp
@@ -57,8 +57,8 @@ u256 const dev::eth::c_quadCoeffDiv = 512;
 
 u256 const dev::eth::c_createDataGas = 200;
 u256 const dev::eth::c_txGas = 21000;
-u256 const dev::eth::c_txDataZeroGas = 37;
-u256 const dev::eth::c_txDataNonZeroGas = 2;
+u256 const dev::eth::c_txDataZeroGas = 4;
+u256 const dev::eth::c_txDataNonZeroGas = 68;
 
 u256 const dev::eth::c_copyGas = 3;