diff --git a/README.md b/README.md
index 513f012..b53ebaf 100644
--- a/README.md
+++ b/README.md
@@ -233,6 +233,18 @@ autoflake --in-place --remove-unused-variables --remove-all-unused-imports -r .
 black .
 ```
 
+If you're using [vscode](https://code.visualstudio.com/) and the [solidity extension](https://github.com/juanfranblanco/vscode-solidity), you can create a folder called `.vscode` at the root folder of this project, and create a file called `settings.json`, and add the following content:
+
+```json
+{
+  "solidity.remappings": [
+    "@chainlink/=[YOUR_HOME_DIR]/.brownie/packages/smartcontractkit/chainlink-brownie-contracts@0.2.2",
+    "@openzeppelin/=[YOUR_HOME_DIR]/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.3.2"
+  ]
+}
+```
+This will quiet the linting errors it gives you. 
+
 ## Resources
 
 To get started with Brownie:
diff --git a/brownie-config.yaml b/brownie-config.yaml
index 0713d04..da5c8ef 100644
--- a/brownie-config.yaml
+++ b/brownie-config.yaml
@@ -4,13 +4,13 @@ reports:
   exclude_contracts:
     - SafeMath
 dependencies:
-  - smartcontractkit/chainlink-brownie-contracts@0.2.1
-  - OpenZeppelin/openzeppelin-contracts@3.4.0
+  - smartcontractkit/chainlink-brownie-contracts@0.2.2
+  - OpenZeppelin/openzeppelin-contracts@4.3.2
 compiler:
   solc:
     remappings:
-      - '@chainlink=smartcontractkit/chainlink-brownie-contracts@0.2.1'
-      - '@openzeppelin=OpenZeppelin/openzeppelin-contracts@3.4.0'
+      - '@chainlink=smartcontractkit/chainlink-brownie-contracts@0.2.2'
+      - '@openzeppelin=OpenZeppelin/openzeppelin-contracts@4.3.2'
 # automatically fetch contract sources from Etherscan
 autofetch_sources: True
 # Uncomment to use the .env file
@@ -29,8 +29,8 @@ networks:
     link_token: '0xa36085F69e2889c224210F603D836748e7dC0088'
     keyhash: '0x6c3699283bda56ad74f6b855546325b68d482e983852a7a82979cc4807b641f4'
     fee: 100000000000000000
-    oracle: '0x2f90A6D021db21e1B2A077c5a37B3C7E75D15b7e'
-    jobId: '29fa9aa13bf1468788b7cc4a500a45b8'
+    oracle: '0xc57b33452b4f7bb189bb5afae9cc4aba1f7a4fd8'
+    jobId: 'd5270d1c311941d0b08bead21fea7747'
     eth_usd_price_feed: '0x9326BFA02ADD2366b30bacB125260Af641031331'
     # Change to True if you have an Etherscan API key and want to verify
     verify: False
@@ -46,8 +46,8 @@ networks:
     link_token: '0x01be23585060835e02b77ef475b0cc51aa1e0709'
     keyhash: '0x2ed0feb3e7fd2022120aa84fab1945545a9f2ffc9076fd6156fa96eaff4c1311'
     fee: 100000000000000000
-    oracle: '0x7AFe1118Ea78C1eae84ca8feE5C65Bc76CcF879e'
-    jobId: '6d1bfe27e7034b1d87b5270556b17277'
+    oracle: '0xc57b33452b4f7bb189bb5afae9cc4aba1f7a4fd8'
+    jobId: '6b88e0402e5d415eb946e528b8e0c7ba'
     eth_usd_price_feed: '0x8A753747A1Fa494EC906cE90E9f37563A8AF630e'
     # Change to True if you have an Etherscan API key and want to verify
     verify: False
diff --git a/contracts/APIConsumer.sol b/contracts/APIConsumer.sol
index 4933f68..d396883 100644
--- a/contracts/APIConsumer.sol
+++ b/contracts/APIConsumer.sol
@@ -1,10 +1,10 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.6.6;
+pragma solidity ^0.8.0;
 
-import "@chainlink/contracts/src/v0.6/ChainlinkClient.sol";
+import "@chainlink/contracts/src/v0.8/ChainlinkClient.sol";
 
 contract APIConsumer is ChainlinkClient {
-  
+    using Chainlink for Chainlink.Request;
     uint256 public volume;
     
     address private oracle;
@@ -17,7 +17,7 @@ contract APIConsumer is ChainlinkClient {
      * Job ID: 29fa9aa13bf1468788b7cc4a500a45b8
      * Fee: 0.1 LINK
      */
-    constructor(address _oracle, string memory _jobId, uint256 _fee, address _link) public {
+    constructor(address _oracle, string memory _jobId, uint256 _fee, address _link) {
         if (_link == address(0)) {
             setPublicChainlinkToken();
         } else {
diff --git a/contracts/Counter.sol b/contracts/Counter.sol
index 470cc92..73de0ad 100644
--- a/contracts/Counter.sol
+++ b/contracts/Counter.sol
@@ -1,10 +1,7 @@
-pragma solidity ^0.6.7;
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
 
-
-interface KeeperCompatibleInterface {
-    function checkUpkeep(bytes calldata checkData) external returns (bool upkeepNeeded, bytes memory performData);
-    function performUpkeep(bytes calldata performData) external;
-}
+import "@chainlink/contracts/src/v0.8/interfaces/KeeperCompatibleInterface.sol";
 
 contract Counter is KeeperCompatibleInterface {
     /**
@@ -20,7 +17,7 @@ contract Counter is KeeperCompatibleInterface {
     uint public lastTimeStamp;
 
     
-    constructor(uint updateInterval) public {
+    constructor(uint updateInterval) {
       interval = updateInterval;
       lastTimeStamp = block.timestamp;
 
diff --git a/contracts/PriceFeedConsumer.sol b/contracts/PriceFeedConsumer.sol
index c897abf..ab05d2b 100644
--- a/contracts/PriceFeedConsumer.sol
+++ b/contracts/PriceFeedConsumer.sol
@@ -1,8 +1,8 @@
 
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.6.6;
+pragma solidity ^0.8.0;
 
-import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";
+import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
 
 contract PriceFeedConsumer {
 
@@ -18,7 +18,7 @@ contract PriceFeedConsumer {
      * Aggregator: ETH/USD
      * Address: 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419
      */
-    constructor(address AggregatorAddress) public {
+    constructor(address AggregatorAddress) {
         priceFeed = AggregatorV3Interface(AggregatorAddress);
     }
 
diff --git a/contracts/VRFConsumer.sol b/contracts/VRFConsumer.sol
index c4ebadd..ffa708b 100644
--- a/contracts/VRFConsumer.sol
+++ b/contracts/VRFConsumer.sol
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-pragma solidity 0.6.6;
+pragma solidity ^0.8.0;
 
-import "@chainlink/contracts/src/v0.6/VRFConsumerBase.sol";
+import "@chainlink/contracts/src/v0.8/VRFConsumerBase.sol";
 
 contract VRFConsumer is VRFConsumerBase {
     
@@ -22,7 +22,7 @@ contract VRFConsumer is VRFConsumerBase {
         VRFConsumerBase(
             _vrfCoordinator, // VRF Coordinator
             _linkToken  // LINK Token
-        ) public
+        ) 
     {
         keyHash = _keyhash;
         // fee = 0.1 * 10 ** 18; // 0.1 LINK
diff --git a/tests/test_vrf.py b/tests/test_vrf.py
index 7937f17..026ff02 100644
--- a/tests/test_vrf.py
+++ b/tests/test_vrf.py
@@ -72,7 +72,7 @@ def test_returns_random_number_testnet(
     transaction_receipt = vrf_consumer.getRandomNumber({"from": get_account()})
     assert isinstance(transaction_receipt.txid, str)
     transaction_receipt.wait(1)
-    time.sleep(35)
+    time.sleep(90)
     # Assert
     assert vrf_consumer.randomResult() > 0
     assert isinstance(vrf_consumer.randomResult(), int)