diff --git a/physionet-django/user/validators.py b/physionet-django/user/validators.py
index 2c306243b..edc19c2a4 100644
--- a/physionet-django/user/validators.py
+++ b/physionet-django/user/validators.py
@@ -211,6 +211,7 @@ def validate_nan(value):
     if re.fullmatch(r'[0-9\-+()]*', value):
         raise ValidationError('Cannot be a number.')
 
+
 def validate_orcid_token(value):
     """
     Validation to verify the token returned during
@@ -219,6 +220,7 @@ def validate_orcid_token(value):
     if not re.fullmatch(r'^[a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12}$', value):
         raise ValidationError('ORCID token is not in expected format.')
 
+
 def validate_orcid_id_token(token):
     """
     When openid scope is enabled then ORCID returns
@@ -246,7 +248,7 @@ def validate_orcid_id_token(token):
             audience=settings.ORCID_CLIENT_ID,
             issuer=settings.ORCID_DOMAIN
         )
-    except jwt.InvalidTokenError as e:
+    except jwt.InvalidTokenError:
         raise ValidationError('ORCID id_token is invalid.')
 
 def validate_orcid_id(value):
diff --git a/requirements.txt b/requirements.txt
index 6e0df478e..cbbdbc7a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -539,6 +539,9 @@ pyasn1==0.4.8 ; python_version >= "3.9" and python_version < "4.0" \
 pycparser==2.20 ; python_version >= "3.9" and python_version < "4.0" \
     --hash=sha256:2d475327684562c3a96cc71adf7dc8c4f0565175cf86b6d7a404ff4c771f15f0 \
     --hash=sha256:7582ad22678f0fcd81102833f60ef8d0e57288b6b5fb00323d101be910e35705
+pyjwt==2.9.0 ; python_version >= "3.9" and python_version < "4.0" \
+    --hash=sha256:3b02fb0f44517787776cf48f2ae25d8e14f300e6d7545a4315cee571a415e850 \
+    --hash=sha256:7e1e5b56cc735432a7369cbfa0efe50fa113ebecdc04ae6922deba8b84582d0c
 pyopenssl==23.2.0 ; python_version >= "3.9" and python_version < "4.0" \
     --hash=sha256:24f0dc5227396b3e831f4c7f602b950a5e9833d292c8e4a2e06b709292806ae2 \
     --hash=sha256:276f931f55a452e7dea69c7173e984eb2a4407ce413c918aa34b55f82f9b8bac