diff --git a/requirements.txt b/requirements.txt
index faeec926..b15a3572 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ aiofiles
 httptools
 ujson; sys_platform != "win32" and implementation_name == "cpython"
 uvloop; sys_platform != "win32" and implementation_name == "cpython"
-websockets
+websockets>=4.0,<5.0
diff --git a/sanic/app.py b/sanic/app.py
index 06540088..ca50edc1 100644
--- a/sanic/app.py
+++ b/sanic/app.py
@@ -303,7 +303,8 @@ class Sanic:
                     await fut
                 except (CancelledError, ConnectionClosed):
                     pass
-                self.websocket_tasks.remove(fut)
+                finally:
+                    self.websocket_tasks.remove(fut)
                 await ws.close()
 
             self.router.add(uri=uri, handler=websocket_handler,
diff --git a/sanic/request.py b/sanic/request.py
index 22d74a64..7ce7620d 100644
--- a/sanic/request.py
+++ b/sanic/request.py
@@ -78,6 +78,11 @@ class Request(dict):
                                        self.method,
                                        self.path)
 
+    def __bool__(self):
+        if self.transport:
+            return True
+        return False
+
     @property
     def json(self):
         if self.parsed_json is None:
diff --git a/sanic/router.py b/sanic/router.py
index 8b3fd3dc..2864bf84 100644
--- a/sanic/router.py
+++ b/sanic/router.py
@@ -1,4 +1,5 @@
 import re
+import uuid
 from collections import defaultdict, namedtuple
 from collections.abc import Iterable
 from functools import lru_cache
@@ -18,6 +19,8 @@ REGEX_TYPES = {
     'number': (float, r'[0-9\\.]+'),
     'alpha': (str, r'[A-Za-z]+'),
     'path': (str, r'[^/].*?'),
+    'uuid': (uuid.UUID, r'[A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-'
+             r'[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}')
 }
 
 ROUTER_CACHE_SIZE = 1024
diff --git a/setup.py b/setup.py
index 3f7812a2..5954b926 100644
--- a/setup.py
+++ b/setup.py
@@ -60,7 +60,7 @@ requirements = [
     uvloop,
     ujson,
     'aiofiles>=0.3.0',
-    'websockets>=4.0',
+    'websockets>=4.0,<5.0',
 ]
 if strtobool(os.environ.get("SANIC_NO_UJSON", "no")):
     print("Installing without uJSON")
diff --git a/tests/test_routes.py b/tests/test_routes.py
index ed35ea48..146db97c 100644
--- a/tests/test_routes.py
+++ b/tests/test_routes.py
@@ -422,6 +422,28 @@ def test_dynamic_route_regex():
     assert response.status == 200
 
 
+def test_dynamic_route_uuid():
+    import uuid
+    app = Sanic('test_dynamic_route_uuid')
+
+    results = []
+
+    @app.route('/quirky/<unique_id:uuid>')
+    async def handler(request, unique_id):
+        results.append(unique_id)
+        return text('OK')
+
+    request, response = app.test_client.get('/quirky/123e4567-e89b-12d3-a456-426655440000')
+    assert response.text == 'OK'
+    assert type(results[0]) is uuid.UUID
+
+    request, response = app.test_client.get('/quirky/{}'.format(uuid.uuid4()))
+    assert response.status == 200
+
+    request, response = app.test_client.get('/quirky/non-existing')
+    assert response.status == 404
+
+
 def test_dynamic_route_path():
     app = Sanic('test_dynamic_route_path')
 
diff --git a/tox.ini b/tox.ini
index be984b4e..a62368e2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,7 +12,7 @@ deps =
     pytest-cov
     pytest-sanic
     pytest-sugar
-    aiohttp>=2.3
+    aiohttp>=2.3,<=3.2.1
     chardet<=2.3.0
     beautifulsoup4
     gunicorn