diff --git a/package-lock.json b/package-lock.json
index fd1c617..939c54c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@spresso-sdk/price_optimization",
-  "version": "2.1.1",
+  "version": "2.2.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@spresso-sdk/price_optimization",
-      "version": "2.1.1",
+      "version": "2.2.0",
       "license": "MIT",
       "dependencies": {
         "axios": "^1.4.0"
diff --git a/package.json b/package.json
index 3d06c8a..9b18fb9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@spresso-sdk/price_optimization",
-  "version": "2.1.1",
+  "version": "2.2.0",
   "description": "Spresso Price Optimization SDK for Node",
   "main": "./dist/cjs/index.js",
   "module": "./dist/esm/index.js",
diff --git a/src/index.ts b/src/index.ts
index 7449bf6..54d49fc 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -7,8 +7,8 @@ const DEFAULT_KEEPALIVE_TIMEOUT_MS = 30000;
 const DEFAULT_SOCKET_COUNT = 128;
 
 export interface ILogger {
-    error(message: string): void;
-    info?(message: string): void;
+    error(message?: any, ...optionalParams: any[]): void;
+    info?(message?: any, ...optionalParams: any[]): void;
 }
 
 export type PricingRequest = {