diff --git a/src/hardhat/contracts/Uniswap_V3/pool/IUniswapV3PoolImmutables.sol b/src/hardhat/contracts/Uniswap_V3/pool/IUniswapV3PoolImmutables.sol
index b86b228d..f34e078b 100644
--- a/src/hardhat/contracts/Uniswap_V3/pool/IUniswapV3PoolImmutables.sol
+++ b/src/hardhat/contracts/Uniswap_V3/pool/IUniswapV3PoolImmutables.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
-pragma solidity >=0.6.11;
+pragma solidity ^0.8.0;
 
 /// @title Pool state that never changes
 /// @notice These parameters are fixed for a pool forever, i.e., the methods will always return the same values