diff --git a/app/Http/Controllers/PublicApiController.php b/app/Http/Controllers/PublicApiController.php
index 74bcb6715..a32f67ed3 100644
--- a/app/Http/Controllers/PublicApiController.php
+++ b/app/Http/Controllers/PublicApiController.php
@@ -604,7 +604,7 @@ class PublicApiController extends Controller
         $max = $request->input('max_id');
         $limit = $request->input('limit') ?? 3;
         $user = $request->user();
-        $amin = SnowflakeService::byDate(now()->subDays(490));
+        $amin = SnowflakeService::byDate(now()->subDays(config('federation.network_timeline_days_falloff')));
 
         $filtered = $user ? UserFilterService::filters($user->profile_id) : [];
 
diff --git a/config/federation.php b/config/federation.php
index d5f6b2d26..91575abd9 100644
--- a/config/federation.php
+++ b/config/federation.php
@@ -45,6 +45,7 @@ return [
 	],
 
 	'network_timeline' => env('PF_NETWORK_TIMELINE', true),
+	'network_timeline_days_falloff' => env('PF_NETWORK_TIMELINE_DAYS_FALLOFF', 2),
 
 	'custom_emoji' => [
 		'enabled' => env('CUSTOM_EMOJI', false),