diff --git a/fix_werkzeug_2.x.patch b/fix_werkzeug_2.x.patch
deleted file mode 100644
index 0fc88a1..0000000
--- a/fix_werkzeug_2.x.patch
+++ /dev/null
@@ -1,52 +0,0 @@
---- a/trytond/protocols/wrappers.py
-+++ b/trytond/protocols/wrappers.py
-@@ -12,7 +12,6 @@
-     from http import client as HTTPStatus
- 
- from werkzeug.wrappers import Request as _Request, Response
--from werkzeug.http import wsgi_to_bytes, bytes_to_wsgi
- from werkzeug.datastructures import Authorization
- from werkzeug.exceptions import abort, HTTPException
- 
-@@ -113,7 +112,8 @@
- def parse_authorization_header(value):
-     if not value:
-         return
--    value = wsgi_to_bytes(value)
-+    if not isinstance(value, bytes):
-+        value = value.encode('latin1')
-     try:
-         auth_type, auth_info = value.split(None, 1)
-         auth_type = auth_type.lower()
-@@ -127,9 +127,9 @@
-         except Exception:
-             return
-         return Authorization('session', {
--                'username': bytes_to_wsgi(username),
-+                'username': username.decode("latin1"),
-                 'userid': userid,
--                'session': bytes_to_wsgi(session),
-+                'session': session.decode("latin1"),
-                 })
- 
- 
-@@ -214,16 +214,16 @@
-             pool = Pool()
-             UserApplication = pool.get('res.user.application')
- 
--            authorization = wsgi_to_bytes(request.headers['Authorization'])
-+            authorization = request.headers['Authorization']
-             try:
-                 auth_type, auth_info = authorization.split(None, 1)
-                 auth_type = auth_type.lower()
-             except ValueError:
-                 abort(HTTPStatus.UNAUTHORIZED)
--            if auth_type != b'bearer':
-+            if auth_type != 'bearer':
-                 abort(HTTPStatus.FORBIDDEN)
- 
--            application = UserApplication.check(bytes_to_wsgi(auth_info), name)
-+            application = UserApplication.check(auth_info, name)
-             if not application:
-                 abort(HTTPStatus.FORBIDDEN)
-             transaction = Transaction()