diff --git a/contracts/ownership/Claimable.sol b/contracts/ownership/Claimable.sol
index a99ee5366..e825f28bf 100644
--- a/contracts/ownership/Claimable.sol
+++ b/contracts/ownership/Claimable.sol
@@ -1,4 +1,4 @@
-pragma solidity ^0.4.0;
+pragma solidity ^0.4.8;
 
 
 import './Ownable.sol';
diff --git a/contracts/ownership/Contactable.sol b/contracts/ownership/Contactable.sol
index 4c32b749d..f9d5800a1 100644
--- a/contracts/ownership/Contactable.sol
+++ b/contracts/ownership/Contactable.sol
@@ -1,4 +1,4 @@
-pragma solidity ^0.4.0;
+pragma solidity ^0.4.8;
 
 import './Ownable.sol';
 /*