diff --git a/code/webauthn/contracts/contracts/Account.sol b/code/webauthn/contracts/contracts/Account.sol
index b3dedff..7008b56 100644
--- a/code/webauthn/contracts/contracts/Account.sol
+++ b/code/webauthn/contracts/contracts/Account.sol
@@ -284,7 +284,7 @@ contract Account is IAccount, IERC1271 {
   // ANCHOR_END: callVerifier
 
   function extractChallengeFromClientData(bytes memory clientDataJSON) public pure returns (string memory) {
-    bytes memory challengeSlice = slice(clientDataJSON, 36, 58);
+    bytes memory challengeSlice = slice(clientDataJSON, 36, 88);
     string memory challenge = string(challengeSlice);
     return challenge;
   }
@@ -319,7 +319,7 @@ contract Account is IAccount, IERC1271 {
             if (base64Bytes[i] == '/') base64Bytes[i] = '_';
         }
         
-        return string(slice(base64Bytes, 0, 58));
+        return string(base64Bytes);
     }
 
   fallback() external {
diff --git a/content/tutorials/erc20-paymaster/10.index.md b/content/tutorials/erc20-paymaster/10.index.md
index c40dbb2..db7b5ed 100644
--- a/content/tutorials/erc20-paymaster/10.index.md
+++ b/content/tutorials/erc20-paymaster/10.index.md
@@ -54,7 +54,7 @@ Next, navigate into the project directory and install the dependencies:
 :test-action{actionId="npm-install"}
 
 ```sh
-cd custom-paymaster-tutorial && npm install --force
+cd custom-paymaster-tutorial && npm install
 ```
 
 :test-action{actionId="wait-for-install"}
diff --git a/tests/configs/daily-spend-limit.ts b/tests/configs/daily-spend-limit.ts
index 8f42cc2..2419d7e 100644
--- a/tests/configs/daily-spend-limit.ts
+++ b/tests/configs/daily-spend-limit.ts
@@ -3,7 +3,7 @@ import type { IStepConfig } from '../utils/types';
 export const steps: IStepConfig = {
   'initialize-project': {
     action: 'runCommand',
-    prompts: 'Private key of the wallet: |npm: ',
+    prompts: 'Private key of the wallet: |❯ npm: ',
   },
   'wait-for-init': {
     action: 'wait',
diff --git a/tests/configs/erc20-paymaster.ts b/tests/configs/erc20-paymaster.ts
index f070a87..5a3ebf8 100644
--- a/tests/configs/erc20-paymaster.ts
+++ b/tests/configs/erc20-paymaster.ts
@@ -3,7 +3,7 @@ import type { IStepConfig } from '../utils/types';
 export const steps: IStepConfig = {
   'initialize-hardhat-project': {
     action: 'runCommand',
-    prompts: 'Private key of the wallet:0x7726827caac94a7f9e1b160f7ea819f172f7b6f9d2a97f992c38edeab82d4110|npm: ',
+    prompts: 'Private key of the wallet:0x7726827caac94a7f9e1b160f7ea819f172f7b6f9d2a97f992c38edeab82d4110|❯ npm: ',
   },
   'wait-for-init': {
     action: 'wait',