diff --git a/app/Http/Controllers/FederationController.php b/app/Http/Controllers/FederationController.php
index e78ac6287..0f1f5b853 100644
--- a/app/Http/Controllers/FederationController.php
+++ b/app/Http/Controllers/FederationController.php
@@ -133,7 +133,7 @@ class FederationController extends Controller
 		// });
 		$res = [];
 
-		return response(json_encode($res, JSON_UNESCAPED_SLASHES))->header('Content-Type', 'application/activity+json');
+		return response(json_encode($res, JSON_UNESCAPED_SLASHES))->header('Content-Type', 'application/ld+json; profile="http://www.w3.org/ns/activitystreams"');
 	}
 
 	public function userInbox(Request $request, $username)
diff --git a/app/Http/Controllers/InstanceActorController.php b/app/Http/Controllers/InstanceActorController.php
index 0eb796732..318ab317f 100644
--- a/app/Http/Controllers/InstanceActorController.php
+++ b/app/Http/Controllers/InstanceActorController.php
@@ -14,7 +14,7 @@ class InstanceActorController extends Controller
 			$res = (new InstanceActor())->first()->getActor();
 			return json_encode($res, JSON_UNESCAPED_SLASHES);
 		});
-		return response($res)->header('Content-Type', 'application/activity+json');
+		return response($res)->header('Content-Type', 'application/ld+json; profile="http://www.w3.org/ns/activitystreams"');
 	}
 
 	public function inbox()
@@ -32,6 +32,6 @@ class InstanceActorController extends Controller
 			'first' => config('app.url') . '/i/actor/outbox?page=true',
 			'last' =>  config('app.url') . '/i/actor/outbox?min_id=0page=true'
 		], JSON_UNESCAPED_SLASHES);
-		return response($res)->header('Content-Type', 'application/activity+json');
+		return response($res)->header('Content-Type', 'application/ld+json; profile="http://www.w3.org/ns/activitystreams"');
 	}
 }
diff --git a/app/Http/Controllers/ProfileController.php b/app/Http/Controllers/ProfileController.php
index 3f6795d5b..0031fc580 100644
--- a/app/Http/Controllers/ProfileController.php
+++ b/app/Http/Controllers/ProfileController.php
@@ -191,7 +191,7 @@ class ProfileController extends Controller
 			$fractal = new Fractal\Manager();
 			$resource = new Fractal\Resource\Item($user, new ProfileTransformer);
 			$res = $fractal->createData($resource)->toArray();
-			return response(json_encode($res['data']))->header('Content-Type', 'application/activity+json');
+			return response(json_encode($res['data']))->header('Content-Type', 'application/ld+json; profile="http://www.w3.org/ns/activitystreams"');
 		});
 	}
 
diff --git a/app/Http/Controllers/StatusController.php b/app/Http/Controllers/StatusController.php
index 117124bb9..a7bb36694 100644
--- a/app/Http/Controllers/StatusController.php
+++ b/app/Http/Controllers/StatusController.php
@@ -293,7 +293,7 @@ class StatusController extends Controller
 		$resource = new Fractal\Resource\Item($status, $object);
 		$res = $fractal->createData($resource)->toArray();
 
-		return response()->json($res['data'], 200, ['Content-Type' => 'application/activity+json'], JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES);
+		return response()->json($res['data'], 200, ['Content-Type' => 'application/ld+json; profile="http://www.w3.org/ns/activitystreams"'], JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES);
 	}
 
 	public function edit(Request $request, $username, $id)
diff --git a/app/Jobs/RemoteFollowPipeline/RemoteFollowPipeline.php b/app/Jobs/RemoteFollowPipeline/RemoteFollowPipeline.php
index 92e5f8de0..483772bd8 100644
--- a/app/Jobs/RemoteFollowPipeline/RemoteFollowPipeline.php
+++ b/app/Jobs/RemoteFollowPipeline/RemoteFollowPipeline.php
@@ -97,7 +97,7 @@ class RemoteFollowPipeline implements ShouldQueue
         $res = $this->response;
         $url = $res['inbox'];
 
-        $activity = Zttp::withHeaders(['Content-Type' => 'application/activity+json'])->post($url, [
+        $activity = Zttp::withHeaders(['Content-Type' => 'application/ld+json; profile="http://www.w3.org/ns/activitystreams"'])->post($url, [
             'type'   => 'Follow',
             'object' => $this->follower->url(),
         ]);
diff --git a/app/Jobs/StoryPipeline/StoryFetch.php b/app/Jobs/StoryPipeline/StoryFetch.php
index 771ed9a31..9032bbbf7 100644
--- a/app/Jobs/StoryPipeline/StoryFetch.php
+++ b/app/Jobs/StoryPipeline/StoryFetch.php
@@ -69,7 +69,7 @@ class StoryFetch implements ShouldQueue
 		$version = config('pixelfed.version');
 		$appUrl = config('app.url');
 		$headers = [
-			'Accept'     	=> 'application/json',
+			'Accept'     	=> 'application/ld+json; profile="http://www.w3.org/ns/activitystreams"',
 			'Authorization' => 'Bearer ' . $token,
 			'User-Agent' 	=> "(Pixelfed/{$version}; +{$appUrl})",
 		];
diff --git a/app/Services/ActivityPubFetchService.php b/app/Services/ActivityPubFetchService.php
index b137e7bb6..fd9dc68e5 100644
--- a/app/Services/ActivityPubFetchService.php
+++ b/app/Services/ActivityPubFetchService.php
@@ -17,7 +17,7 @@ class ActivityPubFetchService
 		}
 
 		$headers = HttpSignature::instanceActorSign($url, false);
-		$headers['Accept'] = 'application/activity+json, application/json';
+		$headers['Accept'] = 'application/activity+json, application/ld+json; profile="http://www.w3.org/ns/activitystreams"';
 		$headers['User-Agent'] = '(Pixelfed/'.config('pixelfed.version').'; +'.config('app.url').')';
 
 		try {
diff --git a/app/Util/ActivityPub/HttpSignature.php b/app/Util/ActivityPub/HttpSignature.php
index 792762b10..c5f5823d0 100644
--- a/app/Util/ActivityPub/HttpSignature.php
+++ b/app/Util/ActivityPub/HttpSignature.php
@@ -132,7 +132,7 @@ class HttpSignature {
       '(request-target)' => 'post '.parse_url($url, PHP_URL_PATH),
       'Date' => $date->format('D, d M Y H:i:s \G\M\T'),
       'Host' => parse_url($url, PHP_URL_HOST),
-      'Accept' => 'application/activity+json, application/json',
+      'Accept' => 'application/activity+json, application/ld+json; profile="http://www.w3.org/ns/activitystreams"',
     ];
 
     if($digest) {