diff --git a/services/marketMaker/README.md b/services/marketMaker/README.md
new file mode 100644
index 0000000..e13b8a7
--- /dev/null
+++ b/services/marketMaker/README.md
@@ -0,0 +1,4 @@
+## RUN
+
+node service.js
+
diff --git a/services/marketMaker/package.json b/services/marketMaker/package.json
index d4f0918..b7287ca 100644
--- a/services/marketMaker/package.json
+++ b/services/marketMaker/package.json
@@ -5,7 +5,7 @@
   "license": "GPL3",
   "dependencies": {
     "dotenv": "^16.4.5",
-    "ethers": "5",
+    "ethers": "^6.13.2",
     "express": "^4.19.2"
   }
 }
diff --git a/services/marketMaker/service.js b/services/marketMaker/service.js
index 698655e..dd4ded4 100644
--- a/services/marketMaker/service.js
+++ b/services/marketMaker/service.js
@@ -3,33 +3,32 @@ const { ethers } = require('ethers');
 const express = require('express');
 
 // Load environment variables
-const INFURA_PROJECT_ID = process.env.INFURA_PROJECT_ID;
+const PROVIDER_URL = process.env.PROVIDER_URL;
 const PRIVATE_KEY = process.env.PRIVATE_KEY;
 const CONTRACT_ADDRESS = process.env.CONTRACT_ADDRESS;
 const ABI = [
     // Add your contract's ABI here
-    "function shilft() public",
-    "function slide() public"
+    {"type":"function","name":"recenter","inputs":[],"outputs":[],"stateMutability":"nonpayable"}
 ];
 
 // Initialize the provider
-const provider = new ethers.providers.InfuraProvider('sepolia', INFURA_PROJECT_ID);
+const provider = new ethers.JsonRpcProvider(PROVIDER_URL);
+
 const wallet = new ethers.Wallet(PRIVATE_KEY, provider);
 const contract = new ethers.Contract(CONTRACT_ADDRESS, ABI, wallet);
 
 let startTime = new Date();
-let lastShilftTime = null;
-let lastSlideTime = null;
+let lastCallTime = null;
 
 async function checkFunds() {
-    const balance = await wallet.getBalance();
-    return ethers.utils.formatEther(balance);
+    const balance = await provider.getBalance(wallet.address);
+    return ethers.formatEther(balance);
 }
 
-async function canCallFunction(func) {
+async function canCallFunction() {
     try {
-        // Simulate calling the function
-        await func.callStatic();
+        // this will throw if the function is not callable
+        await contract.recenter.estimateGas();
         return true;
     } catch (error) {
         return false;
@@ -54,18 +53,12 @@ async function main() {
 
     while (true) {
         try {
-            if (await canCallFunction(contract.shilft)) {
-                console.log('Calling shilft...');
-                const tx = await contract.shilft();
+            if (await canCallFunction()) {
+                console.log('Calling recenter...');
+                const tx = await contract.recenter();
                 await tx.wait();
-                lastShilftTime = new Date();
-                console.log('shilft called successfully.');
-            } else if (await canCallFunction(contract.slide)) {
-                console.log('Calling slide...');
-                const tx = await contract.slide();
-                await tx.wait();
-                lastSlideTime = new Date();
-                console.log('slide called successfully.');
+                lastCallTime = new Date();
+                console.log('recenter called successfully.');
             } else {
                 console.log('No function can be called at the moment.');
             }
@@ -94,8 +87,7 @@ app.get('/status', async (req, res) => {
         const status = {
             balance: `${balance} ETH`,
             uptime: uptime,
-            lastShilftTime: lastShilftTime ? lastShilftTime.toString() : 'Never',
-            lastSlideTime: lastSlideTime ? lastSlideTime.toString() : 'Never'
+            lastCallTime: lastCallTime ? lastCallTime.toString() : 'Never'
         };
 
         if (parseFloat(balance) < 0.1) {