diff --git a/src/components/navbar/action/CategorySelect.tsx b/src/components/navbar/action/CategorySelect.tsx
index 7087fe6345..be30cd5209 100644
--- a/src/components/navbar/action/CategorySelect.tsx
+++ b/src/components/navbar/action/CategorySelect.tsx
@@ -29,7 +29,7 @@ export default function CategorySelect(props: IProps) {
 
     const { open, setOpen, mangaId } = props;
 
-    const { data: mangaCategoriesData, mutate } = requestManager.useGetMangaCategories(mangaId);
+    const { data: mangaResult } = requestManager.useGetManga(mangaId);
     const { data } = requestManager.useGetCategories();
     const categoriesData = data?.categories.nodes;
     const [triggerMutate] = requestManager.useUpdateMangaCategories();
@@ -42,7 +42,7 @@ export default function CategorySelect(props: IProps) {
         return cats;
     }, [categoriesData]);
 
-    const selectedIds = mangaCategoriesData?.map((c) => c.id) ?? [];
+    const selectedIds = mangaResult?.manga.categories.nodes.map((c) => c.id) ?? [];
 
     const handleCancel = () => {
         setOpen(false);
@@ -66,7 +66,7 @@ export default function CategorySelect(props: IProps) {
                     },
                 },
             },
-        }).then(() => mutate());
+        });
     };
 
     return (
diff --git a/src/lib/requests/RequestManager.ts b/src/lib/requests/RequestManager.ts
index 48a8682d66..2c61c5d256 100644
--- a/src/lib/requests/RequestManager.ts
+++ b/src/lib/requests/RequestManager.ts
@@ -26,7 +26,6 @@ import { OperationVariables } from '@apollo/client/core';
 import { useEffect, useRef, useState } from 'react';
 import {
     BackupValidationResult,
-    ICategory,
     IChapter,
     IMangaChapter,
     ISourceFilters,
@@ -1292,13 +1291,6 @@ export class RequestManager {
         return this.getValidImgUrlFor(`manga/${mangaId}/thumbnail`);
     }
 
-    public useGetMangaCategories(
-        mangaId: number,
-        swrOptions?: SWROptions<ICategory[]>,
-    ): AbortableSWRResponse<ICategory[]> {
-        return this.doRequest(HttpMethod.SWR_GET, `manga/${mangaId}/category`, { swrOptions });
-    }
-
     public useUpdateMangaCategories(
         options?: MutationHookOptions<UpdateMangaCategoriesMutation, UpdateMangaCategoriesMutationVariables>,
     ): AbortableApolloUseMutationResponse<UpdateMangaCategoriesMutation, UpdateMangaCategoriesMutationVariables> {