diff --git a/app/Http/Controllers/MicropubMediaController.php b/app/Http/Controllers/MicropubMediaController.php
index 93788e33..e03062e7 100644
--- a/app/Http/Controllers/MicropubMediaController.php
+++ b/app/Http/Controllers/MicropubMediaController.php
@@ -11,10 +11,12 @@ use App\Models\Media;
 use App\Services\TokenService;
 use Exception;
 use Illuminate\Contracts\Container\BindingResolutionException;
+use Illuminate\Database\Eloquent\ModelNotFoundException;
 use Illuminate\Http\File;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Response;
 use Illuminate\Http\UploadedFile;
+use Illuminate\Support\Carbon;
 use Illuminate\Support\Facades\Storage;
 use Illuminate\Support\Str;
 use Intervention\Image\Exception\NotReadableException;
@@ -53,7 +55,11 @@ class MicropubMediaController extends Controller
         }
 
         if (request()->input('q') === 'last') {
-            $media = Media::latest()->firstOrFail();
+            try {
+                $media = Media::latest()->whereDate('created_at', '>=', Carbon::now()->subMinutes(30))->firstOrFail();
+            } catch (ModelNotFoundException $exception) {
+                return response()->json([], 404);
+            }
 
             return response()->json(['url' => $media->url]);
         }
diff --git a/tests/Feature/MicropubMediaTest.php b/tests/Feature/MicropubMediaTest.php
index 6a8c1496..3a1272d7 100644
--- a/tests/Feature/MicropubMediaTest.php
+++ b/tests/Feature/MicropubMediaTest.php
@@ -3,6 +3,7 @@
 namespace Tests\Feature;
 
 use App\Jobs\ProcessMedia;
+use App\Models\Media;
 use Illuminate\Foundation\Testing\DatabaseTransactions;
 use Illuminate\Http\UploadedFile;
 use Illuminate\Support\Facades\Queue;
@@ -15,6 +16,21 @@ class MicropubMediaTest extends TestCase
     use DatabaseTransactions;
     use TestToken;
 
+    /** @test */
+    public function emptyResponseForLastUploadWhenNoneFound()
+    {
+        // Make sure there’s no media
+        Media::all()->each(function ($media) {
+            $media->delete();
+        });
+
+        $response = $this->get(
+            '/api/media?q=last',
+            ['HTTP_Authorization' => 'Bearer ' . $this->getToken()]
+        );
+        $response->assertStatus(404);
+    }
+
     /** @test */
     public function clientCanListLastUpload()
     {