fix: DeprecationWarning

datacite/jsonutils.py

@@ -3,6 +3,7 @@
 # This file is part of DataCite.
 #
 # Copyright (C) 2016 CERN.
+# Copyright (C) 2025 Graz University of Technology.
 #
 # DataCite is free software; you can redistribute it and/or modify it
 # under the terms of the Revised BSD License; see LICENSE file for
@@ -12,7 +13,7 @@
 
 import json
 
-from jsonschema import RefResolver, validate
+from jsonresolver.contrib.jsonschema import RefResolverBase
 from jsonschema.validators import validator_for
 
 
@@ -25,5 +26,5 @@ def validator_factory(schema_filename):
     validator_cls.check_schema(schema)
 
     return validator_cls(
-        schema, resolver=RefResolver("file:{}".format(schema_filename), schema)
+        schema, resolver=RefResolverBase("file:{}".format(schema_filename), schema)
     )

setup.cfg

@@ -2,6 +2,7 @@
 #
 # Copyright (C) 2015, 2016 CERN.
 # Copyright (C) 2024, California Institute of Technology
+# Copyright (C) 2026 Graz University of Technology.
 #
 # DataCite is free software; you can redistribute it and/or modify it
 # under the terms of the Revised BSD License; see LICENSE file for
@@ -30,7 +31,8 @@ include_package_data = True
 packages = find:
 zip_safe = False
 python_requires = >=3.9
-install_requires = 
+install_requires =
+    jsonresolver>=0.5.0
     jsonschema>=3.0.0
     lxml>=4.5.2
     requests>=2.12.2
@@ -42,7 +44,7 @@ tests =
     responses>=0.10.6
     mock>=1.3.0
     pytest-invenio>=1.4.0
-    pytest-black-ng>=0.4.0
+    pytest-black>=0.6.0
     datacite[docs]
 docs = Sphinx>=4.5.0
 all = datacite[tests]