diff --git a/contracts/common/SecuredTokenTransfer.sol b/contracts/common/SecuredTokenTransfer.sol
index 359eb231a..382bcb059 100644
--- a/contracts/common/SecuredTokenTransfer.sol
+++ b/contracts/common/SecuredTokenTransfer.sol
@@ -16,7 +16,7 @@ abstract contract SecuredTokenTransfer {
      * @return transferred Returns true if the transfer was successful
      */
     function transferToken(address token, address receiver, uint256 amount) internal returns (bool transferred) {
-        // 0xa9059cbb - keccak("transfer(address,uint256)")
+        // 0xa9059cbb - bytes4(keccak256("transfer(address,uint256)"))
         bytes memory data = abi.encodeWithSelector(0xa9059cbb, receiver, amount);
         /* solhint-disable no-inline-assembly */
         /// @solidity memory-safe-assembly
diff --git a/contracts/proxies/SafeProxy.sol b/contracts/proxies/SafeProxy.sol
index 42e0f477c..10c4931af 100644
--- a/contracts/proxies/SafeProxy.sol
+++ b/contracts/proxies/SafeProxy.sol
@@ -38,7 +38,7 @@ contract SafeProxy {
         /* solhint-disable no-inline-assembly */
         assembly {
             let _singleton := sload(0)
-            // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
+            // 0xa619486e == bytes4(keccak256("masterCopy()")). The value is right padded to 32-bytes with 0s
             if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
                 // We mask the singleton address when handling the `masterCopy()` call to ensure that it is correctly
                 // ABI-encoded. We do this by shifting the address left by 96 bits (or 12 bytes) and then storing it in