diff --git a/contracts/DataFeedReaderExample.sol b/contracts/DataFeedReaderExample.sol
index d543cb0..cbdf7bc 100644
--- a/contracts/DataFeedReaderExample.sol
+++ b/contracts/DataFeedReaderExample.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity 0.8.17;
+pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts/access/Ownable.sol";
 import "@api3/contracts/interfaces/IApi3ReaderProxy.sol";