diff --git a/contracts/mocks/MaliciousERC20.sol b/contracts/mocks/MaliciousERC20.sol
index dc655c5..247cb64 100644
--- a/contracts/mocks/MaliciousERC20.sol
+++ b/contracts/mocks/MaliciousERC20.sol
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: CC0-1.0
 
-pragma solidity ^0.8.0;
+pragma solidity ^0.8.9;
 
 import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 
diff --git a/contracts/mocks/MaliciousRecipient.sol b/contracts/mocks/MaliciousRecipient.sol
index 2bd7ac7..89cf9f6 100644
--- a/contracts/mocks/MaliciousRecipient.sol
+++ b/contracts/mocks/MaliciousRecipient.sol
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: CC0-1.0
 
-// contracts/MaliciousRecipient.sol
-pragma solidity ^0.8.0;
+
+pragma solidity ^0.8.9;
 
 contract MaliciousRecipient {
     // Fallback function that reverts when receiving Ether