diff --git a/packages/graphql/api/slots.ts b/packages/graphql/api/slots.ts
index 12e39ea..f3a6a2f 100644
--- a/packages/graphql/api/slots.ts
+++ b/packages/graphql/api/slots.ts
@@ -166,7 +166,7 @@ export class SlotsService extends BaseService {
 
   async updateSlot(variables: VariablesOf<typeof GQL.UpdateSlotDocument>) {
     await this.checkUpdatePermission(variables);
-    await this.checkUpdateIsTimeChanging(variables);
+    await this.checkUpdateDatetime(variables);
 
     const { mutate } = await getClientWithToken();
 
@@ -223,7 +223,7 @@ export class SlotsService extends BaseService {
     }
   }
 
-  private async checkUpdateIsTimeChanging(variables: VariablesOf<typeof GQL.UpdateSlotDocument>) {
+  private async checkUpdateDatetime(variables: VariablesOf<typeof GQL.UpdateSlotDocument>) {
     const { slot } = await this.getSlot({ documentId: variables.documentId });
 
     if (!slot) throw new Error(ERRORS.SLOT_NOT_FOUND);