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-rw-r--r--contracts/interfaces/contracts/protocol/Exchange/IValidator.sol2
1 files changed, 1 insertions, 1 deletions
diff --git a/contracts/interfaces/contracts/protocol/Exchange/IValidator.sol b/contracts/interfaces/contracts/protocol/Exchange/IValidator.sol
index 2dd69100c..d214e54dd 100644
--- a/contracts/interfaces/contracts/protocol/Exchange/IValidator.sol
+++ b/contracts/interfaces/contracts/protocol/Exchange/IValidator.sol
@@ -16,7 +16,7 @@
*/
-pragma solidity 0.4.24;
+pragma solidity ^0.4.24;
contract IValidator {