diff --git a/package.json b/package.json
index 20b526b..dde271d 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "@lemoncloud/lemon-web-core",
     "version": "1.0.12",
-    "description": "Shared library for LEMONCLOUD",
+    "description": "Core Web-based Library for signing request at LEMONCLOUD",
     "repository": "lemoncloud-io/lemon-web-core",
     "exports": "./dist/index.js",
     "types": "./dist/index.d.ts",
@@ -130,5 +130,10 @@
         "aws-sdk": "^2.1630.0",
         "axios": "^1.7.2",
         "crypto-js": "^4.2.0"
+    },
+    "peerDependencies": {
+        "aws-sdk": "^2.1630.0",
+        "axios": "^1.7.2",
+        "crypto-js": "^4.2.0"
     }
 }
diff --git a/src/core/aws-web.core.ts b/src/core/aws-web.core.ts
index dd0f85f..fccaca5 100644
--- a/src/core/aws-web.core.ts
+++ b/src/core/aws-web.core.ts
@@ -257,6 +257,7 @@ export class AWSWebCore implements WebCoreService {
         );
         const refreshToken = {
             ...response.data,
+            identityToken: response.data.identityToken || cached.identityToken,
             identityPoolId: cached.identityPoolId,
         };
         this.logger.info('success to refresh token');