diff --git a/.github/workflows/hardhat.yml b/.github/workflows/hardhat.yml
index 1b2dc0be..a4f37d85 100644
--- a/.github/workflows/hardhat.yml
+++ b/.github/workflows/hardhat.yml
@@ -23,3 +23,6 @@ jobs:
 
       - name: Build contracts & package with hardhat
         uses: ./.github/actions/build-hardhat
+
+      - name: Run hardhat tests
+        run: yarn test:hardhat
diff --git a/src/ERC20WrapperBundler.sol b/src/ERC20WrapperBundler.sol
index 2066a2fd..6c00f11b 100644
--- a/src/ERC20WrapperBundler.sol
+++ b/src/ERC20WrapperBundler.sol
@@ -27,7 +27,7 @@ abstract contract ERC20WrapperBundler is BaseBundler {
     /// @param wrapper The address of the ERC20 wrapper contract.
     /// @param amount The amount of underlying tokens to deposit. Pass `type(uint256).max` to deposit the bundler's
     /// balance.
-    function erc20WrapperDepositFor(address wrapper, uint256 amount) external protected {
+    function erc20WrapperDepositFor(address wrapper, uint256 amount) external payable protected {
         ERC20 underlying = ERC20(address(ERC20Wrapper(wrapper).underlying()));
 
         amount = Math.min(amount, underlying.balanceOf(address(this)));
@@ -44,7 +44,7 @@ abstract contract ERC20WrapperBundler is BaseBundler {
     /// @param wrapper The address of the ERC20 wrapper contract.
     /// @param account The address receiving the underlying tokens.
     /// @param amount The amount of wrapped tokens to burn. Pass `type(uint256).max` to burn the bundler's balance.
-    function erc20WrapperWithdrawTo(address wrapper, address account, uint256 amount) external protected {
+    function erc20WrapperWithdrawTo(address wrapper, address account, uint256 amount) external payable protected {
         require(account != address(0), ErrorsLib.ZERO_ADDRESS);
 
         amount = Math.min(amount, ERC20(wrapper).balanceOf(address(this)));
diff --git a/test/hardhat/EthereumBundler.spec.ts b/test/hardhat/EthereumBundler.spec.ts
index 3055a51a..f72a2a39 100644
--- a/test/hardhat/EthereumBundler.spec.ts
+++ b/test/hardhat/EthereumBundler.spec.ts
@@ -1,7 +1,16 @@
+import { expect } from "chai";
 import { AbiCoder, MaxUint256, Signature, keccak256, toBigInt, TypedDataDomain, TypedDataField } from "ethers";
 import hre from "hardhat";
 import { BundlerAction } from "pkg";
-import { ERC20Mock, ERC4626Mock, EthereumBundler, MorphoMock, OracleMock, IrmMock } from "types";
+import {
+  ERC20Mock,
+  ERC4626Mock,
+  EthereumBundler,
+  MorphoMock,
+  OracleMock,
+  IrmMock,
+  EthereumBundler__factory,
+} from "types";
 import { MarketParamsStruct } from "types/lib/morpho-blue/src/Morpho";
 
 import { SignerWithAddress } from "@nomicfoundation/hardhat-ethers/signers";
@@ -25,32 +34,36 @@ const permit2Config: TypedDataConfig = {
     verifyingContract: permit2Address,
   },
   types: {
-    PermitTransferFrom: [
+    PermitSingle: [
       {
-        name: "permitted",
-        type: "TokenPermissions",
+        name: "details",
+        type: "PermitDetails",
       },
       {
         name: "spender",
         type: "address",
       },
       {
-        name: "nonce",
-        type: "uint256",
-      },
-      {
-        name: "deadline",
+        name: "sigDeadline",
         type: "uint256",
       },
     ],
-    TokenPermissions: [
+    PermitDetails: [
       {
         name: "token",
         type: "address",
       },
       {
         name: "amount",
-        type: "uint256",
+        type: "uint160",
+      },
+      {
+        name: "expiration",
+        type: "uint48",
+      },
+      {
+        name: "nonce",
+        type: "uint48",
       },
     ],
   },
@@ -250,14 +263,17 @@ describe("EthereumBundler", () => {
         deadline: MAX_UINT48,
       };
 
-      const permit2TransferFrom = {
-        permitted: {
-          token: await collateral.getAddress(),
+      const collateralAddress = await collateral.getAddress();
+
+      const approve2 = {
+        details: {
+          token: collateralAddress,
           amount: assets,
+          nonce: 0n,
+          expiration: MAX_UINT48,
         },
         spender: bundlerAddress,
-        nonce: 0n,
-        deadline: MAX_UINT48,
+        sigDeadline: MAX_UINT48,
       };
 
       await collateral.connect(borrower).approve(permit2Address, MaxUint256);
@@ -278,12 +294,12 @@ describe("EthereumBundler", () => {
             ),
             false,
           ),
-          BundlerAction.permit2TransferFrom(
-            permit2TransferFrom,
-            Signature.from(
-              await borrower.signTypedData(permit2Config.domain, permit2Config.types, permit2TransferFrom),
-            ),
+          BundlerAction.approve2(
+            approve2,
+            Signature.from(await borrower.signTypedData(permit2Config.domain, permit2Config.types, approve2)),
+            false,
           ),
+          BundlerAction.transferFrom2(collateralAddress, assets),
           BundlerAction.morphoSupplyCollateral(marketParams, assets, borrower.address, []),
           BundlerAction.morphoBorrow(marketParams, assets / 2n, 0, MaxUint256, borrower.address),
         ]);
@@ -297,15 +313,17 @@ describe("EthereumBundler", () => {
       const supplier = suppliers[i];
 
       const assets = BigInt.WAD * toBigInt(1 + Math.floor(random() * 100));
+      const collateralAddress = await collateral.getAddress();
 
-      const permit2TransferFrom = {
-        permitted: {
-          token: await collateral.getAddress(),
+      const approve2 = {
+        details: {
+          token: collateralAddress,
           amount: assets,
+          expiration: MAX_UINT48,
+          nonce: 0n,
         },
         spender: bundlerAddress,
-        nonce: 0n,
-        deadline: MAX_UINT48,
+        sigDeadline: MAX_UINT48,
       };
 
       await collateral.connect(supplier).approve(permit2Address, MaxUint256);
@@ -315,14 +333,24 @@ describe("EthereumBundler", () => {
       await bundler
         .connect(supplier)
         .multicall([
-          BundlerAction.permit2TransferFrom(
-            permit2TransferFrom,
-            Signature.from(
-              await supplier.signTypedData(permit2Config.domain, permit2Config.types, permit2TransferFrom),
-            ),
+          BundlerAction.approve2(
+            approve2,
+            Signature.from(await supplier.signTypedData(permit2Config.domain, permit2Config.types, approve2)),
+            false,
           ),
+          BundlerAction.transferFrom2(collateralAddress, assets),
           BundlerAction.erc4626Deposit(erc4626Address, assets, 0, supplier.address),
         ]);
     }
   });
+
+  it("should have all batched functions payable", async () => {
+    EthereumBundler__factory.createInterface().forEachFunction((func) => {
+      if (func.stateMutability === "view" || func.stateMutability === "pure") return;
+
+      const shouldPayable = !func.name.startsWith("onMorpho");
+
+      expect(func.payable).to.equal(shouldPayable);
+    });
+  });
 });