diff --git a/src/cryptojwt/utils.py b/src/cryptojwt/utils.py
index 0d57f803..8471840f 100644
--- a/src/cryptojwt/utils.py
+++ b/src/cryptojwt/utils.py
@@ -1,5 +1,4 @@
 import base64
-import cgi
 import functools
 import importlib
 import json
@@ -7,6 +6,7 @@
 import struct
 import warnings
 from binascii import unhexlify
+from email.message import EmailMessage
 from typing import List
 
 from cryptojwt.exception import BadSyntax
@@ -269,5 +269,7 @@ def httpc_params_loader(httpc_params):
 
 def check_content_type(content_type, mime_type):
     """Return True if the content type contains the MIME type"""
-    mt, _ = cgi.parse_header(content_type)
+    msg = EmailMessage()
+    msg["content-type"] = content_type
+    mt = msg.get_content_type()
     return mime_type == mt