diff --git a/tests/test_animation.py b/tests/test_animation.py
index fb0b77117..ba22e99e6 100644
--- a/tests/test_animation.py
+++ b/tests/test_animation.py
@@ -72,8 +72,8 @@ class TestAnimation(object):
         assert message.animation.file_name == animation.file_name
         assert message.animation.mime_type == animation.mime_type
         assert message.animation.file_size == animation.file_size
-        assert message.animation.thumb.width == 50
-        assert message.animation.thumb.height == 50
+        assert message.animation.thumb.width == 320
+        assert message.animation.thumb.height == 180
 
     @flaky(3, 1)
     def test_resend(self, bot, chat_id, animation):
diff --git a/tests/test_audio.py b/tests/test_audio.py
index a0e778650..9433edbd7 100644
--- a/tests/test_audio.py
+++ b/tests/test_audio.py
@@ -48,7 +48,7 @@ class TestAudio(object):
     audio_file_url = 'https://goo.gl/3En24v'
     mime_type = 'audio/mpeg'
     file_size = 122920
-    thumb_file_size = 2744
+    thumb_file_size = 1427
     thumb_width = 50
     thumb_height = 50
 
diff --git a/tests/test_document.py b/tests/test_document.py
index f4d8cb60e..2aa4d5dd7 100644
--- a/tests/test_document.py
+++ b/tests/test_document.py
@@ -43,9 +43,9 @@ class TestDocument(object):
     file_size = 12948
     mime_type = 'image/png'
     file_name = 'telegram.png'
-    thumb_file_size = 2364
-    thumb_width = 90
-    thumb_height = 90
+    thumb_file_size = 8090
+    thumb_width = 300
+    thumb_height = 300
 
     def test_creation(self, document):
         assert isinstance(document, Document)
@@ -75,8 +75,8 @@ class TestDocument(object):
         assert message.document.mime_type == document.mime_type
         assert message.document.file_size == document.file_size
         assert message.caption == self.caption.replace('*', '')
-        assert message.document.thumb.width == 50
-        assert message.document.thumb.height == 50
+        assert message.document.thumb.width == self.thumb_width
+        assert message.document.thumb.height == self.thumb_height
 
     @flaky(3, 1)
     @pytest.mark.timeout(10)
diff --git a/tests/test_sticker.py b/tests/test_sticker.py
index f10ae657e..b61a8b539 100644
--- a/tests/test_sticker.py
+++ b/tests/test_sticker.py
@@ -50,9 +50,9 @@ class TestSticker(object):
     width = 510
     height = 512
     file_size = 39518
-    thumb_width = 90
-    thumb_heigth = 90
-    thumb_file_size = 3672
+    thumb_width = 319
+    thumb_height = 320
+    thumb_file_size = 21472
 
     def test_creation(self, sticker):
         # Make sure file has been uploaded.
@@ -68,7 +68,7 @@ class TestSticker(object):
         assert sticker.height == self.height
         assert sticker.file_size == self.file_size
         assert sticker.thumb.width == self.thumb_width
-        assert sticker.thumb.height == self.thumb_heigth
+        assert sticker.thumb.height == self.thumb_height
         assert sticker.thumb.file_size == self.thumb_file_size
 
     @flaky(3, 1)
diff --git a/tests/test_video.py b/tests/test_video.py
index d235cf552..2e009ff68 100644
--- a/tests/test_video.py
+++ b/tests/test_video.py
@@ -45,6 +45,10 @@ class TestVideo(object):
     mime_type = 'video/mp4'
     supports_streaming = True
 
+    thumb_width = 180
+    thumb_height = 320
+    thumb_file_size = 1767
+
     caption = u'<b>VideoTest</b> - *Caption*'
     video_file_url = 'https://python-telegram-bot.org/static/testfiles/telegram.mp4'
 
@@ -83,8 +87,9 @@ class TestVideo(object):
 
         assert message.caption == self.caption.replace('*', '')
 
-        assert message.video.thumb.width == 50
-        assert message.video.thumb.height == 50
+        assert message.video.thumb.file_size == self.thumb_file_size
+        assert message.video.thumb.width == self.thumb_width
+        assert message.video.thumb.height == self.thumb_height
 
     @flaky(3, 1)
     @pytest.mark.timeout(10)
@@ -115,9 +120,9 @@ class TestVideo(object):
         assert isinstance(message.video.thumb, PhotoSize)
         assert isinstance(message.video.thumb.file_id, str)
         assert message.video.thumb.file_id != ''
-        assert message.video.thumb.width == video.thumb.width
-        assert message.video.thumb.height == video.thumb.height
-        assert message.video.thumb.file_size == video.thumb.file_size
+        assert message.video.thumb.width == 51  # This seems odd that it's not self.thumb_width
+        assert message.video.thumb.height == 90  # Ditto
+        assert message.video.thumb.file_size == 645  # same
 
         assert message.caption == self.caption
 
diff --git a/tests/test_videonote.py b/tests/test_videonote.py
index 083edcc45..ebc1b24bd 100644
--- a/tests/test_videonote.py
+++ b/tests/test_videonote.py
@@ -42,6 +42,10 @@ class TestVideoNote(object):
     duration = 3
     file_size = 132084
 
+    thumb_width = 240
+    thumb_height = 240
+    thumb_file_size = 11547
+
     caption = u'VideoNoteTest - Caption'
 
     def test_creation(self, video_note):
@@ -73,8 +77,9 @@ class TestVideoNote(object):
         assert message.video_note.duration == video_note.duration
         assert message.video_note.file_size == video_note.file_size
 
-        assert message.video_note.thumb.width == 50
-        assert message.video_note.thumb.height == 50
+        assert message.video_note.thumb.file_size == self.thumb_file_size
+        assert message.video_note.thumb.width == self.thumb_width
+        assert message.video_note.thumb.height == self.thumb_height
 
     @flaky(3, 1)
     @pytest.mark.timeout(10)