diff --git a/README.md b/README.md
index 5e49fc2..29763de 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,9 @@ import { deployMock } from "viem-mock-contract";
 
 describe("MyContract", () => {
   it("should deploy a mock contract", async () => {
-    const mockContract = await deployMock();
+    const reader = await hre.viem.getPublicClient();
+    const [signer] = await hre.viem.getWalletClients();
+    const mockContract = await deployMock(signer, reader);
 
     // Add expectations to mock
     await deployMock.setup(