diff --git a/package.json b/package.json
index 9204cda..87916b0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bybit-api",
-  "version": "3.3.0",
+  "version": "3.3.1",
   "description": "Complete & robust node.js SDK for Bybit's REST APIs and WebSockets, with TypeScript & integration tests.",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
diff --git a/src/contract-client.ts b/src/contract-client.ts
index 6844b1c..59146d7 100644
--- a/src/contract-client.ts
+++ b/src/contract-client.ts
@@ -293,7 +293,7 @@ export class ContractClient extends BaseRestClient {
 
   /** Get the information of open interest limit. */
   getOpenInterestLimitInfo(symbol: string): Promise<APIResponseV3<any>> {
-    return this.getPrivate('/contract/v3/private/position/closed-pnl', {
+    return this.getPrivate('/contract/v3/private/position/limit-info', {
       symbol,
     });
   }
diff --git a/src/util/BaseRestClient.ts b/src/util/BaseRestClient.ts
index a83d687..9c18473 100644
--- a/src/util/BaseRestClient.ts
+++ b/src/util/BaseRestClient.ts
@@ -216,9 +216,11 @@ export default abstract class BaseRestClient {
       options.headers['X-BAPI-RECV-WINDOW'] = signResult.recvWindow;
 
       if (method === 'GET') {
+        // const serialisedParams = signResult.serializedParams;
         return {
           ...options,
           params: signResult.originalParams,
+          // url: url + (serialisedParams ? '?' + serialisedParams : ''),
         };
       }
 
@@ -359,6 +361,7 @@ export default abstract class BaseRestClient {
 
       const paramsStr = timestamp + key + recvWindow + signRequestParams;
       res.sign = await signMessage(paramsStr, this.secret);
+      res.serializedParams = signRequestParams;
 
       // console.log('sign req: ', paramsStr);
       return res;