diff --git a/hardhat/contracts/ERC20Votes.sol b/hardhat/contracts/ERC20Votes.sol
index f6d5e10..f085f12 100644
--- a/hardhat/contracts/ERC20Votes.sol
+++ b/hardhat/contracts/ERC20Votes.sol
@@ -1,15 +1,15 @@
-// SPDX-License-Identifier: MIT
-pragma solidity >=0.7.0 <0.9.0;
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity ^0.8.4;
 
 import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
 import "@openzeppelin/contracts/access/AccessControl.sol";
-import "@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol";
-import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol";
 
-contract MyToken is ERC20, AccessControl, ERC20Permit, ERC20Votes {
+contract LotteryToken is ERC20, ERC20Burnable, AccessControl {
     bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
 
-    constructor() ERC20("MyToken", "MTK") ERC20Permit("MyToken") {
+    constructor(string memory name, string memory symbol) ERC20(name, symbol) {
+        // constructor() ERC20("MyToken", "TKN") {
         _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
         _grantRole(MINTER_ROLE, msg.sender);
     }
@@ -17,27 +17,4 @@ contract MyToken is ERC20, AccessControl, ERC20Permit, ERC20Votes {
     function mint(address to, uint256 amount) public onlyRole(MINTER_ROLE) {
         _mint(to, amount);
     }
-
-    // The following functions are overrides required by Solidity.
-
-    function _afterTokenTransfer(address from, address to, uint256 amount)
-        internal
-        override(ERC20, ERC20Votes)
-    {
-        super._afterTokenTransfer(from, to, amount);
-    }
-
-    function _mint(address to, uint256 amount)
-        internal
-        override(ERC20, ERC20Votes)
-    {
-        super._mint(to, amount);
-    }
-
-    function _burn(address account, uint256 amount)
-        internal
-        override(ERC20, ERC20Votes)
-    {
-        super._burn(account, amount);
-    }
 }