diff --git a/src/plugins/music-together/queue/song.ts b/src/plugins/music-together/queue/song.ts
index 1eac6f71..1684107d 100644
--- a/src/plugins/music-together/queue/song.ts
+++ b/src/plugins/music-together/queue/song.ts
@@ -19,8 +19,14 @@ export const getMusicQueueRenderer = async (
   const store = queue?.queue.store.store;
   if (!store) return null;
 
-  return (await app.networkManager.fetch('/music/get_queue', {
+  return await app.networkManager.fetch<
+    QueueRendererResponse,
+    {
+      queueContextParams: string;
+      videoIds: string[];
+    }
+  >('/music/get_queue', {
     queueContextParams: store.getState().queue.queueContextParams,
     videoIds,
-  })) as QueueRendererResponse | null;
+  });
 };
diff --git a/src/plugins/synced-lyrics/providers/YTMusic.ts b/src/plugins/synced-lyrics/providers/YTMusic.ts
index 633a822d..a655289a 100644
--- a/src/plugins/synced-lyrics/providers/YTMusic.ts
+++ b/src/plugins/synced-lyrics/providers/YTMusic.ts
@@ -111,9 +111,14 @@ export class YTMusic implements LyricProvider {
 
     if (!app) return null;
 
-    return app.networkManager.fetch('/next?prettyPrint=false', {
+    return app.networkManager.fetch<
+      NextData,
+      {
+        videoId: string;
+      }
+    >('/next?prettyPrint=false', {
       videoId,
-    }) as Promise<NextData>;
+    });
   }
 
   private fetchBrowse(browseId: string) {
diff --git a/src/renderer.ts b/src/renderer.ts
index 3488e84b..30996892 100644
--- a/src/renderer.ts
+++ b/src/renderer.ts
@@ -286,7 +286,15 @@ async function onApiLoaded() {
 
       if (!app || !searchBox) return;
 
-      const result = await app.networkManager.fetch('/search', {
+      const result = await app.networkManager.fetch<
+        unknown,
+        {
+          query: string;
+          params?: string;
+          continuation?: string;
+          suggestStats?: unknown;
+        }
+      >('/search', {
         query,
         params,
         continuation,
diff --git a/src/types/youtube-music-app-element.ts b/src/types/youtube-music-app-element.ts
index 700ddc14..4084450c 100644
--- a/src/types/youtube-music-app-element.ts
+++ b/src/types/youtube-music-app-element.ts
@@ -1,6 +1,6 @@
 export interface YouTubeMusicAppElement extends HTMLElement {
   navigate(page: string): void;
   networkManager: {
-    fetch: (url: string, data: unknown) => Promise<unknown>;
+    fetch: <ReturnType, Data>(url: string, data: Data) => Promise<ReturnType>;
   };
 }