diff --git a/packages/core/EventManager.ts b/packages/core/EventManager.ts
index 97f95b201b..d981c1fdac 100644
--- a/packages/core/EventManager.ts
+++ b/packages/core/EventManager.ts
@@ -1,7 +1,7 @@
-import { DestinationCalendar } from "@prisma/client";
+import type { DestinationCalendar } from "@prisma/client";
 import merge from "lodash/merge";
 import { v5 as uuidv5 } from "uuid";
-import { z } from "zod";
+import type { z } from "zod";
 
 import { FAKE_DAILY_CREDENTIAL } from "@calcom/app-store/dailyvideo/lib/VideoApiAdapter";
 import { getEventLocationTypeFromApp } from "@calcom/app-store/locations";
@@ -10,7 +10,7 @@ import getApps from "@calcom/app-store/utils";
 import prisma from "@calcom/prisma";
 import { createdEventSchema } from "@calcom/prisma/zod-utils";
 import type { AdditionalInformation, CalendarEvent, NewCalendarEventType } from "@calcom/types/Calendar";
-import { CredentialPayload, CredentialWithAppName } from "@calcom/types/Credential";
+import type { CredentialPayload, CredentialWithAppName } from "@calcom/types/Credential";
 import type { Event } from "@calcom/types/Event";
 import type {
   CreateUpdateResult,
@@ -255,8 +255,10 @@ export default class EventManager {
       results.push(result);
     }
 
-    // Update all calendar events.
-    results.push(...(await this.updateAllCalendarEvents(evt, booking)));
+    // If there is a calendar reference, update all calendar events.
+    if (booking.references.some((reference) => reference.type.includes("_calendar"))) {
+      results.push(...(await this.updateAllCalendarEvents(evt, booking)));
+    }
 
     const bookingPayment = booking?.payment;