diff --git a/README.md b/README.md
index a2920b9..2d17e0c 100644
--- a/README.md
+++ b/README.md
@@ -116,7 +116,7 @@ interface ICustomerProfile {
   email?: string;
   chat: {
     id?: string;
-    groupID: string;
+    groupID: number;
     preChatSurvey: { question: string; answer: string }[];
   };
   source: 'chats' | 'archives' | 'customers';
diff --git a/src/widgets/shared/customer-profile.ts b/src/widgets/shared/customer-profile.ts
index 65f7bd8..f8b0adb 100644
--- a/src/widgets/shared/customer-profile.ts
+++ b/src/widgets/shared/customer-profile.ts
@@ -15,7 +15,7 @@ export interface ICustomerProfile {
   email?: string;
   chat: {
     id: string;
-    groupID: string;
+    groupID: number;
     preChatSurvey?: { question: string; answer: string }[];
   };
   source: 'chats' | 'archives' | 'customers';