diff --git a/package.json b/package.json
index 644caaab..e623b241 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
-  "name": "eth-block-tracker",
+  "name": "@fksyuan/eth-block-tracker",
   "version": "4.4.3",
-  "description": "A block tracker for the Ethereum blockchain. Keeps track of the latest block.",
+  "description": "A block tracker for the PlatON blockchain. Keeps track of the latest block.",
   "main": "src/polling.js",
   "scripts": {
     "lint": "eslint --ext .js .",
@@ -49,10 +49,10 @@
   },
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/MetaMask/eth-block-tracker.git"
+    "url": "git+https://github.com/fksyuan/eth-block-tracker.git"
   },
   "bugs": {
-    "url": "https://github.com/MetaMask/eth-block-tracker/issues"
+    "url": "https://github.com/fksyuan/eth-block-tracker/issues"
   },
-  "homepage": "https://github.com/MetaMask/eth-block-tracker#readme"
+  "homepage": "https://github.com/fksyuan/eth-block-tracker#readme"
 }
diff --git a/src/polling.js b/src/polling.js
index a3b54acf..7ddb5d59 100644
--- a/src/polling.js
+++ b/src/polling.js
@@ -11,8 +11,8 @@ class PollingBlockTracker extends BaseBlockTracker {
     if (!opts.provider) {
       throw new Error('PollingBlockTracker - no provider specified.')
     }
-    const pollingInterval = opts.pollingInterval || 20 * sec
-    const retryTimeout = opts.retryTimeout || pollingInterval / 10
+    const pollingInterval = opts.pollingInterval || 5 * sec
+    const retryTimeout = opts.retryTimeout || pollingInterval
     const keepEventLoopActive = opts.keepEventLoopActive === undefined ? true : opts.keepEventLoopActive
     const setSkipCacheFlag = opts.setSkipCacheFlag || false
     // BaseBlockTracker constructor
@@ -69,7 +69,7 @@ class PollingBlockTracker extends BaseBlockTracker {
   }
 
   async _fetchLatestBlock () {
-    const req = { jsonrpc: '2.0', id: createRandomId(), method: 'eth_blockNumber', params: [] }
+    const req = { jsonrpc: '2.0', id: createRandomId(), method: 'platon_blockNumber', params: [] }
     if (this._setSkipCacheFlag) {
       req.skipCache = true
     }