diff --git a/package-lock.json b/package-lock.json
index 9dcd137..594cdb1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,6 @@
         "@yudiel/react-qr-scanner": "^1.1.10",
         "antd": "^5.10.3",
         "buffer": "^6.0.3",
-        "hellojs": "^1.20.0",
         "i18next": "^23.2.3",
         "i18next-browser-languagedetector": "^7.1.0",
         "i18next-http-backend": "^2.2.1",
@@ -11174,11 +11173,6 @@
         "he": "bin/he"
       }
     },
-    "node_modules/hellojs": {
-      "version": "1.20.0",
-      "resolved": "https://registry.npmjs.org/hellojs/-/hellojs-1.20.0.tgz",
-      "integrity": "sha512-zfZGRt0J0OpJHnw2GJz4uh+rzMNAMWpIymiaRbSmCqCvqDMLSx2/qR5JucqnHPsZHUEjyKj5aLJ8K54kyHHjLQ=="
-    },
     "node_modules/hoopy": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/hoopy/-/hoopy-0.1.4.tgz",
diff --git a/package.json b/package.json
index 3134b39..d57f14a 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,6 @@
     "@yudiel/react-qr-scanner": "^1.1.10",
     "antd": "^5.10.3",
     "buffer": "^6.0.3",
-    "hellojs": "^1.20.0",
     "i18next": "^23.2.3",
     "i18next-browser-languagedetector": "^7.1.0",
     "i18next-http-backend": "^2.2.1",
diff --git a/src/Pages/Store/Calendar/index.js b/src/Pages/Store/Calendar/index.js
index acc6a00..9f485d4 100644
--- a/src/Pages/Store/Calendar/index.js
+++ b/src/Pages/Store/Calendar/index.js
@@ -1,53 +1,15 @@
 import { Button } from "antd";
 import { useTranslation } from "react-i18next";
 import { Constants } from "../../../utils";
-import hello from "hellojs";
-import { useEffect } from "react";
 
 export default function StoreCalendar() {
   const { t } = useTranslation();
 
-  useEffect(() => {
-    console.log("hello", Constants.GOOGLE_CLIENT_ID);
-
-    hello.init(
-      {
-        google: Constants.GOOGLE_CLIENT_ID,
-      },
-      {
-        response_type: "code",
-        redirect_uri:
-          "https://customerdashboard.ex.umbach.dev/store/calendar/finish",
-        scope: [
-          "https://www.googleapis.com/auth/calendar.app.created",
-          "https://www.googleapis.com/auth/calendar.events.freebusy",
-        ],
-        force: true,
-      }
-    );
-  }, []);
-
   return (
     <>
       <h1>{t("calendar.pageTitle")}</h1>
 
-      <Button
-        onClick={() => {
-          hello("google")
-            .login()
-            .then(
-              () => {
-                console.log("Login successful");
-                var accessToken =
-                  hello("google").getAuthResponse().access_token;
-                console.log("Access token: " + accessToken);
-              },
-              (e) => {
-                console.log("login error", e);
-              }
-            );
-        }}
-      >
+      <Button href={`${Constants.API_ADDRESS}/calendar/auth/google`}>
         LOGIN with GOOGLE
       </Button>
     </>
diff --git a/src/utils.js b/src/utils.js
index 808ebb8..425bebd 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -75,8 +75,6 @@ export const Constants = {
     MAX_STORE_SERVICE_ACTIVITY_DURATION_MINUTES: 59,
   },
   DELAY_ACCOUNT_NAME_CHECK: 250,
-  GOOGLE_CLIENT_ID:
-    "128055018065-3qkae3nocsscq909vu3lttljro2srt3c.apps.googleusercontent.com",
   MAX_AVATAR_SIZE: 5 * 1024 * 1024,
   ACCEPTED_AVATAR_FILE_TYPES: [
     "image/png",