diff --git a/contracts/FeeBank.sol b/contracts/FeeBank.sol
index 2617398..dff2cd1 100644
--- a/contracts/FeeBank.sol
+++ b/contracts/FeeBank.sol
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 
-pragma solidity 0.8.23;
+pragma solidity ^0.8.23;
 
 import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import { SafeERC20 } from "@1inch/solidity-utils/contracts/libraries/SafeERC20.sol";
diff --git a/contracts/FeeBankCharger.sol b/contracts/FeeBankCharger.sol
index f849fe2..0bd6897 100644
--- a/contracts/FeeBankCharger.sol
+++ b/contracts/FeeBankCharger.sol
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 
-pragma solidity 0.8.23;
+pragma solidity ^0.8.23;
 
 import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import { IFeeBank } from "./interfaces/IFeeBank.sol";
diff --git a/contracts/extensions/BaseExtension.sol b/contracts/extensions/BaseExtension.sol
index 9918dbf..051b3ae 100644
--- a/contracts/extensions/BaseExtension.sol
+++ b/contracts/extensions/BaseExtension.sol
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 
-pragma solidity 0.8.23;
+pragma solidity ^0.8.23;
 
 import { Math } from "@openzeppelin/contracts/utils/math/Math.sol";
 import { IOrderMixin } from "@1inch/limit-order-protocol-contract/contracts/interfaces/IOrderMixin.sol";
diff --git a/contracts/extensions/ResolverValidationExtension.sol b/contracts/extensions/ResolverValidationExtension.sol
index 8d231b8..204af8e 100644
--- a/contracts/extensions/ResolverValidationExtension.sol
+++ b/contracts/extensions/ResolverValidationExtension.sol
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 
-pragma solidity 0.8.23;
+pragma solidity ^0.8.23;
 
 import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import { IOrderMixin } from "@1inch/limit-order-protocol-contract/contracts/interfaces/IOrderMixin.sol";