diff --git a/requirements.txt b/requirements.txt
index a66fd304b1..b8134c16b1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,6 +14,6 @@ djangorestframework==3.11.1
 python-dateutil
 requests
 pillow
-pyjwt
+pyjwt==2.1.0
 pycryptodome
 requests_oauthlib
diff --git a/seahub/onlyoffice/utils.py b/seahub/onlyoffice/utils.py
index 91be11b65e..552954862f 100644
--- a/seahub/onlyoffice/utils.py
+++ b/seahub/onlyoffice/utils.py
@@ -139,6 +139,6 @@ def get_onlyoffice_dict(request, username, repo_id, file_path, file_id='',
             }
         }
 
-        return_dict['onlyoffice_jwt_token'] = jwt.encode(config, ONLYOFFICE_JWT_SECRET).decode('utf-8')
+        return_dict['onlyoffice_jwt_token'] = jwt.encode(config, ONLYOFFICE_JWT_SECRET)
 
     return return_dict