diff --git a/app/api/user/export/route.ts b/app/api/user/export/route.ts
index 9bdc572..7f83a43 100644
--- a/app/api/user/export/route.ts
+++ b/app/api/user/export/route.ts
@@ -32,15 +32,25 @@ export async function GET() {
         updatedAt: userProfile?.updatedAt,
       },
       settings: userSettings,
-      recordings: recordings.map((recording) => ({
-        id: recording.id,
-        title: recording.title,
-        audioUrl: recording.audioUrl,
-        duration: recording.duration,
-        fileSize: recording.fileSize,
-        mimeType: recording.mimeType,
-        createdAt: recording.createdAt.toISOString(),
-      })),
+      recordings: recordings.map(
+        (recording: {
+          id: string;
+          title: string;
+          audioUrl: string;
+          duration: number;
+          fileSize: number;
+          mimeType: string;
+          createdAt: Date;
+        }) => ({
+          id: recording.id,
+          title: recording.title,
+          audioUrl: recording.audioUrl,
+          duration: recording.duration,
+          fileSize: recording.fileSize,
+          mimeType: recording.mimeType,
+          createdAt: recording.createdAt.toISOString(),
+        })
+      ),
       exportDate: new Date().toISOString(),
       version: "1.0.0",
     };
diff --git a/app/debug/s3-test/page.tsx b/app/debug/s3-test/page.tsx
index b371c17..906e992 100644
--- a/app/debug/s3-test/page.tsx
+++ b/app/debug/s3-test/page.tsx
@@ -5,7 +5,7 @@ import AudioPlayer from "@/components/AudioPlayer";
 
 export default function S3TestPage() {
   const [testUrl, setTestUrl] = useState("");
-  const [result, setResult] = useState<any>(null);
+  const [result, setResult] = useState<Record<string, any> | null>(null);
   const [loading, setLoading] = useState(false);
   const [showAudioPlayer, setShowAudioPlayer] = useState(false);