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-rw-r--r--contracts/extensions/contracts/BalanceThresholdFilter/MixinExchangeCalldata.sol2
1 files changed, 1 insertions, 1 deletions
diff --git a/contracts/extensions/contracts/BalanceThresholdFilter/MixinExchangeCalldata.sol b/contracts/extensions/contracts/BalanceThresholdFilter/MixinExchangeCalldata.sol
index bd26a468f..a15e95a9d 100644
--- a/contracts/extensions/contracts/BalanceThresholdFilter/MixinExchangeCalldata.sol
+++ b/contracts/extensions/contracts/BalanceThresholdFilter/MixinExchangeCalldata.sol
@@ -17,7 +17,7 @@
*/
-pragma solidity 0.4.24;
+pragma solidity ^0.4.24;
import "./mixins/MExchangeCalldata.sol";
import "@0x/contracts-libs/contracts/libs/LibAddressArray.sol";