chore: update dependencies

README.md

@@ -39,7 +39,7 @@ This repo contains:
 Contract has a `recoverERC20` function that transfers a `tokenAmount` amount of `tokenAddress` token to the contract owner.
 
 ```solidity
-function recoverERC20(address tokenAddress, uint256 tokenAmount) public onlyOwner;
+function recoverERC20(address tokenAddress, uint256 tokenAmount) public virtual onlyOwner;
 ```
 
 Note: only owner can call the `recoverERC20` function so be careful when use on contracts generated from other contracts.

contracts/TokenRecover.sol

@@ -8,7 +8,7 @@ import "@openzeppelin/contracts/access/Ownable.sol";
 /**
  * @title TokenRecover
  * @author Vittorio Minacori (https://github.com/vittominacori)
- * @dev Allow to recover any ERC20 sent into the contract for error
+ * @dev Allows owner to recover any ERC20 sent into the contract
  */
 contract TokenRecover is Ownable {
 
@@ -17,7 +17,7 @@ contract TokenRecover is Ownable {
      * @param tokenAddress The token contract address
      * @param tokenAmount Number of tokens to be sent
      */
-    function recoverERC20(address tokenAddress, uint256 tokenAmount) public onlyOwner {
+    function recoverERC20(address tokenAddress, uint256 tokenAmount) public virtual onlyOwner {
         IERC20(tokenAddress).transfer(owner(), tokenAmount);
     }
 }

hardhat.config.js

@@ -13,7 +13,7 @@ module.exports = {
     },
   },
   solidity: {
-    version: '0.8.1',
+    version: '0.8.3',
     settings: {
       optimizer: {
         enabled: true,

package.json

@@ -45,27 +45,27 @@
   },
   "homepage": "https://github.com/vittominacori/eth-token-recover",
   "dependencies": {
-    "@openzeppelin/contracts": "4.0.0-beta.0"
+    "@openzeppelin/contracts": "4.0.0"
   },
   "devDependencies": {
     "@nomiclabs/hardhat-ganache": "^2.0.0",
     "@nomiclabs/hardhat-truffle5": "^2.0.0",
     "@nomiclabs/hardhat-web3": "^2.0.0",
     "@openzeppelin/test-helpers": "^0.5.10",
     "@vuepress/plugin-google-analytics": "^1.8.2",
-    "chai": "^4.3.0",
-    "eslint": "^7.20.0",
+    "chai": "^4.3.4",
+    "eslint": "^7.22.0",
     "eslint-config-standard": "^16.0.2",
     "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-mocha-no-only": "^1.1.1",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^4.3.1",
     "eslint-plugin-standard": "^5.0.0",
     "ganache-cli": "^6.12.2",
-    "hardhat": "^2.0.11",
-    "solhint": "^3.3.2",
-    "solidity-coverage": "^0.7.15",
-    "truffle": "^5.1.67",
+    "hardhat": "^2.1.2",
+    "solhint": "^3.3.4",
+    "solidity-coverage": "^0.7.16",
+    "truffle": "^5.2.5",
     "vuepress": "^1.8.2"
   }
 }

truffle-config.js

@@ -1,7 +1,7 @@
 require('chai/register-should');
 
 const solcStable = {
-  version: '0.8.1',
+  version: '0.8.3',
   settings: {
     optimizer: {
       enabled: true,