diff --git a/packages/stream_chat/lib/src/client.dart b/packages/stream_chat/lib/src/client.dart
index 433a132c..8b8d7c11 100644
--- a/packages/stream_chat/lib/src/client.dart
+++ b/packages/stream_chat/lib/src/client.dart
@@ -1029,6 +1029,9 @@ class StreamChatClient {
     Map<String, dynamic> messageFilters,
   }) async {
     assert(() {
+      if (filters == null || filters.isEmpty) {
+        throw ArgumentError('`filters` cannot be set as null or empty');
+      }
       if (query == null && messageFilters == null) {
         throw ArgumentError('Provide at least `query` or `messageFilters`');
       }
diff --git a/packages/stream_chat/test/src/client_test.dart b/packages/stream_chat/test/src/client_test.dart
index 815b3e5e..e82658e1 100644
--- a/packages/stream_chat/test/src/client_test.dart
+++ b/packages/stream_chat/test/src/client_test.dart
@@ -180,18 +180,25 @@ void main() {
           httpClient: mockDio,
         );
 
+        final filter = {
+          'cid': {
+            r'$in': ['messaging:testId']
+          }
+        };
+
+        final query = 'hello';
+
         final queryParams = {
           'payload': json.encode({
-            "filter_conditions": null,
-            'query': null,
-            'sort': null,
+            'filter_conditions': filter,
+            'query': query,
           }),
         };
 
         when(mockDio.get<String>('/search', queryParameters: queryParams))
             .thenAnswer((_) async => Response(data: '{}', statusCode: 200));
 
-        await client.search(null, null, null, null);
+        await client.search(filter, query: query);
 
         verify(mockDio.get<String>('/search', queryParameters: queryParams))
             .called(1);
@@ -218,10 +225,10 @@ void main() {
 
         final queryParams = {
           'payload': json.encode({
-            "filter_conditions": filters,
+            'filter_conditions': filters,
             'query': query,
             'sort': sortOptions,
-            "limit": 10,
+            'limit': 10,
           }),
         };
 
@@ -230,9 +237,9 @@ void main() {
 
         await client.search(
           filters,
-          sortOptions,
-          query,
-          PaginationParams(),
+          sort: sortOptions,
+          query: query,
+          paginationParams: PaginationParams(),
         );
 
         verify(mockDio.get<String>('/search', queryParameters: queryParams))
@@ -648,7 +655,7 @@ void main() {
 
         when(mockDio.post<String>(
           '/messages/${message.id}',
-          data: {'message': message},
+          data: {'message': anything},
         )).thenAnswer((_) async => Response(data: '{}', statusCode: 200));
 
         await client.updateMessage(message);
diff --git a/packages/stream_chat/test/src/models/channel_state_test.dart b/packages/stream_chat/test/src/models/channel_state_test.dart
index b8ce3c80..538f1812 100644
--- a/packages/stream_chat/test/src/models/channel_state_test.dart
+++ b/packages/stream_chat/test/src/models/channel_state_test.dart
@@ -87,7 +87,11 @@ void main() {
        "updated_at": "2020-01-29T03:23:02.843949Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "dry-meadow-0-e8e74482-b4cd-48db-9d1e-30e6c191786f",
@@ -114,7 +118,11 @@ void main() {
        "updated_at": "2020-01-29T03:23:07.981091Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "dry-meadow-0-53e6299f-9b97-4a9c-a27e-7e2dde49b7e0",
@@ -141,7 +149,11 @@ void main() {
        "updated_at": "2020-01-29T03:23:11.568022Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "dry-meadow-0-80925be0-786e-40a5-b225-486518dafd35",
@@ -168,7 +180,11 @@ void main() {
        "updated_at": "2020-01-29T03:32:57.403566Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "dry-meadow-0-64d7970f-ede8-4b31-9738-1bc1756d2bfe",
@@ -195,7 +211,11 @@ void main() {
        "updated_at": "2020-01-29T03:33:35.294802Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "withered-cell-0-84cbd760-cf55-4f7e-9207-c5f66cccc6dc",
@@ -222,7 +242,11 @@ void main() {
        "updated_at": "2020-01-29T03:34:27.393296Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "dry-meadow-0-e9203588-43c3-40b1-91f7-f217fc42aa53",
@@ -249,7 +273,11 @@ void main() {
        "updated_at": "2020-01-29T03:34:37.638376Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "withered-cell-0-7e3552d7-7a0d-45f2-a856-e91b23a7e240",
@@ -276,7 +304,11 @@ void main() {
        "updated_at": "2020-01-29T03:35:04.301566Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "dry-meadow-0-1ffeafd4-e4fc-4c84-9394-9d7cb10fff42",
@@ -303,7 +335,11 @@ void main() {
        "updated_at": "2020-01-29T03:35:24.939085Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "dry-meadow-0-3f147324-12c8-4b41-9fb5-2db88d065efa",
@@ -330,7 +366,11 @@ void main() {
        "updated_at": "2020-01-29T03:35:33.101566Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "dry-meadow-0-51a348ae-0c0a-44de-a556-eac7891c0cf0",
@@ -357,7 +397,11 @@ void main() {
        "updated_at": "2020-01-29T03:35:45.458685Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "icy-recipe-7-a29e237b-8d81-4a97-9bc8-d42bca3f1356",
@@ -384,7 +428,11 @@ void main() {
        "updated_at": "2020-01-29T07:02:11.535395Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "icy-recipe-7-935c396e-ddf8-4a9a-951c-0a12fa5bf055",
@@ -411,7 +459,11 @@ void main() {
        "updated_at": "2020-01-29T07:02:22.485136Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "throbbing-boat-5-1e4d5730-5ff0-4d25-9948-9f34ffda43e4",
@@ -438,7 +490,11 @@ void main() {
        "updated_at": "2020-01-29T14:12:04.688552Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "snowy-credit-3-3e0c1a0d-d22f-42ee-b2a1-f9f49477bf21",
@@ -465,7 +521,11 @@ void main() {
        "updated_at": "2020-01-29T15:29:36.011316Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "snowy-credit-3-3319537e-2d0e-4876-8170-a54f046e4b7d",
@@ -492,7 +552,11 @@ void main() {
        "updated_at": "2020-01-29T15:29:41.677819Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "snowy-credit-3-cfaf0b46-1daa-49c5-947c-b16d6697487d",
@@ -519,7 +583,11 @@ void main() {
        "updated_at": "2020-01-29T15:29:43.354177Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "snowy-credit-3-cebe25a7-a3a3-49fc-9919-91c6725e81f3",
@@ -546,7 +614,11 @@ void main() {
        "updated_at": "2020-01-29T15:29:44.754713Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "divine-glade-9-0cea9262-5766-48e9-8b22-311870aed3bf",
@@ -573,7 +645,11 @@ void main() {
        "updated_at": "2020-01-29T17:02:36.933852Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "red-firefly-9-c4e9007b-bb7d-4238-ae08-5f8e3cd03d73",
@@ -600,7 +676,11 @@ void main() {
        "updated_at": "2020-01-29T22:14:08.54062Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "bitter-glade-2-02aee4eb-4093-4736-808b-2de75820e854",
@@ -627,7 +707,11 @@ void main() {
        "updated_at": "2020-01-30T13:11:37.191293Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "morning-sea-1-0c700bcb-46dd-4224-b590-e77bdbccc480",
@@ -654,7 +738,11 @@ void main() {
        "updated_at": "2020-01-30T13:33:16.853116Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "ancient-salad-0-53e8b4e6-5b7b-43ad-aeee-8bfb6a9ed0be",
@@ -681,7 +769,11 @@ void main() {
        "updated_at": "2020-01-30T13:36:52.749732Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "ancient-salad-0-8c225075-bd4c-42e2-8024-530aae13cd40",
@@ -708,7 +800,11 @@ void main() {
        "updated_at": "2020-01-30T13:37:41.631056Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      },
      {
        "id": "proud-sea-7-17802096-cbf8-4e3c-addd-4ee31f4c8b5c",
@@ -735,7 +831,11 @@ void main() {
        "updated_at": "2020-01-30T13:43:41.062362Z",
        "mentioned_users": [],
        "status": "SENT",
-       "silent": false
+       "silent": false,
+       "pinned": false,
+       "pinned_at": null,
+       "pin_expires": null,
+       "pinned_by": null
      }
    ],
    "watcher_count": 5,
@@ -797,7 +897,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "dry-meadow-0-e8e74482-b4cd-48db-9d1e-30e6c191786f",
@@ -809,7 +913,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "dry-meadow-0-53e6299f-9b97-4a9c-a27e-7e2dde49b7e0",
@@ -821,7 +929,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "dry-meadow-0-80925be0-786e-40a5-b225-486518dafd35",
@@ -833,7 +945,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "dry-meadow-0-64d7970f-ede8-4b31-9738-1bc1756d2bfe",
@@ -845,7 +961,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "withered-cell-0-84cbd760-cf55-4f7e-9207-c5f66cccc6dc",
@@ -857,7 +977,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "dry-meadow-0-e9203588-43c3-40b1-91f7-f217fc42aa53",
@@ -869,7 +993,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "withered-cell-0-7e3552d7-7a0d-45f2-a856-e91b23a7e240",
@@ -881,7 +1009,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "dry-meadow-0-1ffeafd4-e4fc-4c84-9394-9d7cb10fff42",
@@ -893,7 +1025,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "dry-meadow-0-3f147324-12c8-4b41-9fb5-2db88d065efa",
@@ -905,7 +1041,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "dry-meadow-0-51a348ae-0c0a-44de-a556-eac7891c0cf0",
@@ -917,7 +1057,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "icy-recipe-7-a29e237b-8d81-4a97-9bc8-d42bca3f1356",
@@ -929,7 +1073,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "icy-recipe-7-935c396e-ddf8-4a9a-951c-0a12fa5bf055",
@@ -941,7 +1089,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "throbbing-boat-5-1e4d5730-5ff0-4d25-9948-9f34ffda43e4",
@@ -953,7 +1105,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "snowy-credit-3-3e0c1a0d-d22f-42ee-b2a1-f9f49477bf21",
@@ -965,7 +1121,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "snowy-credit-3-3319537e-2d0e-4876-8170-a54f046e4b7d",
@@ -977,7 +1137,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "snowy-credit-3-cfaf0b46-1daa-49c5-947c-b16d6697487d",
@@ -989,7 +1153,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "snowy-credit-3-cebe25a7-a3a3-49fc-9919-91c6725e81f3",
@@ -1001,7 +1169,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "divine-glade-9-0cea9262-5766-48e9-8b22-311870aed3bf",
@@ -1013,7 +1185,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "red-firefly-9-c4e9007b-bb7d-4238-ae08-5f8e3cd03d73",
@@ -1025,7 +1201,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "bitter-glade-2-02aee4eb-4093-4736-808b-2de75820e854",
@@ -1037,7 +1217,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "morning-sea-1-0c700bcb-46dd-4224-b590-e77bdbccc480",
@@ -1049,7 +1233,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "ancient-salad-0-53e8b4e6-5b7b-43ad-aeee-8bfb6a9ed0be",
@@ -1061,7 +1249,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "ancient-salad-0-8c225075-bd4c-42e2-8024-530aae13cd40",
@@ -1073,7 +1265,11 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               },
               {
                 "id": "proud-sea-7-17802096-cbf8-4e3c-addd-4ee31f4c8b5c",
@@ -1085,9 +1281,14 @@ void main() {
                 "show_in_channel": null,
                 "mentioned_users": [],
                 "status": "SENT",
-                "silent": false
+                "silent": false,
+                "pinned": false,
+                "pinned_at": null,
+                "pin_expires": null,
+                "pinned_by": null
               }
             ],
+            "pinned_messages": [],
             "members": [],
             "watcher_count": 5
           }
@@ -1100,6 +1301,7 @@ void main() {
             (j['messages'] as List).map((m) => Message.fromJson(m)).toList(),
         read: null,
         watcherCount: 5,
+        pinnedMessages: [],
         watchers: null,
       );
 
diff --git a/packages/stream_chat/test/src/models/message_test.dart b/packages/stream_chat/test/src/models/message_test.dart
index 7541f722..fe8fc44a 100644
--- a/packages/stream_chat/test/src/models/message_test.dart
+++ b/packages/stream_chat/test/src/models/message_test.dart
@@ -64,6 +64,10 @@ void main() {
       "reaction_scores": {
           "love": 1
       },
+      "pinned": false,
+      "pinned_at": null,
+      "pin_expires": null,
+      "pinned_by": null,
       "reply_count": 0,
       "created_at": "2020-01-28T22:17:31.107978Z",
       "updated_at": "2020-01-28T22:17:31.130506Z",
@@ -86,6 +90,10 @@ void main() {
       expect(message.createdAt, DateTime.parse("2020-01-28T22:17:31.107978Z"));
       expect(message.updatedAt, DateTime.parse("2020-01-28T22:17:31.130506Z"));
       expect(message.mentionedUsers, isA<List<User>>());
+      expect(message.pinned, false);
+      expect(message.pinnedAt, null);
+      expect(message.pinExpires, null);
+      expect(message.pinnedBy, null);
     });
 
     test('should serialize to json correctly', () {
@@ -143,6 +151,10 @@ void main() {
             "parent_id": "parentId",
             "quoted_message": null,
             "quoted_message_id": null,
+            "pinned": false,
+            "pinned_at": null,
+            "pin_expires": null,
+            "pinned_by": null,
             "show_in_channel": true,
             "hey": "test"
           }