diff --git a/foundry.toml b/foundry.toml
index 8fbcc88..9d4aa1a 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -4,7 +4,9 @@ out = 'out'
 libs = ['lib']
 
 # Ankr RPC endpoints (https://www.ankr.com/rpc/)
-rpc_endpoints = { eth = "https://rpc.ankr.com/eth", optimism = "https://rpc.ankr.com/optimism", fantom = "https://rpc.ankr.com/fantom", arbitrum = "https://rpc.ankr.com/arbitrum",   bsc = "https://rpc.ankr.com/bsc", moonriver = "https://moonriver.public.blastapi.io", gnosis = "https://rpc.ankr.com/gnosis", Avalanche = "https://rpc.ankr.com/avalanche", polygon = "https://rpc.ankr.com/polygon", celo = "https://rpc.ankr.com/celo", solana = "https://rpc.ankr.com/solana", IoTeX = "https://rpc.ankr.com/iotex", harmony = "https://rpc.ankr.com/harmony", aptos = "https://rpc.ankr.com/http/aptos/v1", tron = "https://rpc.ankr.com/http/tron", near = "https://rpc.ankr.com/near", klaytn = "https://rpc.ankr.com/klaytn", filecoin = "https://rpc.ankr.com/filecoin", nervos = "https://rpc.ankr.com/nervos", bttc = "https://rpc.ankr.com/bttc", syscoin = "https://rpc.ankr.com/syscoin", arbitrumnova = "https://rpc.ankr.com/arbitrumnova", secretnetwork = "https://rpc.ankr.com/scrt" }
-
+[rpc_endpoints]
+eth = "${ETH_ALCHEMY_API}"
+gnosis = "${GNOSIS_ALCHEMY_API}"
+polygon = "${POLYGON_ALCHEMY_API}"
 
 # See more config options https://github.com/foundry-rs/foundry/tree/master/config
diff --git a/src/tokens/examples/TokenExampleManipulation.sol b/src/tokens/examples/TokenExampleManipulation.sol
index 7c21e15..ee5f9c9 100644
--- a/src/tokens/examples/TokenExampleManipulation.sol
+++ b/src/tokens/examples/TokenExampleManipulation.sol
@@ -4,6 +4,6 @@ import "../Tokens.sol";
 
 contract TokenExampleManipulation is Tokens {
     function manipulateTokenBalance() external {
-        deal(EthereumTokens.USDC, address(this), 1 ether);
+        deal(EthereumTokens.WETH, address(this), 1 ether);
     }
 }
diff --git a/test/examples/PriceManipulationExample.t.sol b/test/examples/PriceManipulationExample.t.sol
index 2b7fd22..b1342bf 100644
--- a/test/examples/PriceManipulationExample.t.sol
+++ b/test/examples/PriceManipulationExample.t.sol
@@ -10,7 +10,7 @@ contract PriceManipulationExampleTest is Test {
     PriceManipulationExample public attackContract;
 
     function setUp() public {
-        mainnetFork = vm.createFork("eth");
+        mainnetFork = vm.createFork("eth", 18464488);
         vm.selectFork(mainnetFork);
 
         attackContract = new PriceManipulationExample();
diff --git a/test/examples/TokensExample.t.sol b/test/examples/TokensExample.t.sol
index ddff608..5c44fbf 100644
--- a/test/examples/TokensExample.t.sol
+++ b/test/examples/TokensExample.t.sol
@@ -17,8 +17,8 @@ contract TokensExampleTest is Test {
     }
 
     function testTokenManipulation() public {
-        console.log("Balance before:", EthereumTokens.USDC.balanceOf(address(tokenExample)));
+        console.log("Balance before:", EthereumTokens.WETH.balanceOf(address(tokenExample)));
         tokenExample.manipulateTokenBalance();
-        console.log("Balance after:", EthereumTokens.USDC.balanceOf(address(tokenExample)));
+        console.log("Balance after:", EthereumTokens.WETH.balanceOf(address(tokenExample)));
     }
 }
diff --git a/test/pocs/DFXFinanceBugfixReview.t.sol b/test/pocs/DFXFinanceBugfixReview.t.sol
index d418530..0663861 100644
--- a/test/pocs/DFXFinanceBugfixReview.t.sol
+++ b/test/pocs/DFXFinanceBugfixReview.t.sol
@@ -12,7 +12,7 @@ contract DFXFinanceBugfixReviewTest is PoC {
     IERC20 EURS = IERC20(0xE111178A87A3BFf0c8d18DECBa5798827539Ae99);
 
     function setUp() public {
-        vm.createSelectFork("https://rpc.ankr.com/polygon", 42064500);
+        vm.createSelectFork("polygon", 42064500);
 
         attackContract = new DFXFinanceBugfixReview();
         tokens.push(PolygonTokens.USDC);