diff --git a/contracts/Token.sol b/contracts/Token.sol
index a98fd80..b62406f 100644
--- a/contracts/Token.sol
+++ b/contracts/Token.sol
@@ -1,7 +1,7 @@
-pragma solidity ^0.4.8;
-
 // ECR20 standard token interface
 
+pragma solidity ^0.4.11;
+
 contract Token {
   uint256 public totalSupply;
   function balanceOf(address who) constant returns (uint256);