diff --git a/tools/mo/unit_tests/mo/convert/import_from_mo_test.py b/tools/mo/unit_tests/mo/convert/import_from_mo_test.py
index 2601611d69f..603ff6eeb4b 100644
--- a/tools/mo/unit_tests/mo/convert/import_from_mo_test.py
+++ b/tools/mo/unit_tests/mo/convert/import_from_mo_test.py
@@ -103,9 +103,9 @@ class ConvertImportMOTest(UnitTestWithMockedTelemetry):
         with tempfile.TemporaryDirectory(dir=self.test_directory) as tmpdir:
             model = self.create_onnx_model()
             model_path = save_to_onnx(model, tmpdir)
-            out_xml = os.path.join(tmpdir, Path("model.xml"))
+            out_xml = os.path.join(tmpdir, "model.xml")
 
-            ov_model = convert_model(input_model=model_path)
+            ov_model = convert_model(Path(model_path))
             serialize(ov_model, out_xml.encode('utf-8'), out_xml.replace('.xml', '.bin').encode('utf-8'))
 
             ir = IREngine(out_xml, out_xml.replace('.xml', '.bin'))
diff --git a/tools/ovc/openvino/tools/ovc/cli_parser.py b/tools/ovc/openvino/tools/ovc/cli_parser.py
index 7ae175df132..e8dcb63fa0e 100644
--- a/tools/ovc/openvino/tools/ovc/cli_parser.py
+++ b/tools/ovc/openvino/tools/ovc/cli_parser.py
@@ -318,7 +318,7 @@ def readable_dirs_or_files_or_empty(paths: [str, list, tuple]):
     if isinstance(paths, (list, tuple)):
         paths_list = [readable_file_or_dir_or_object(path) for path in paths]
     if isinstance(paths, (str, pathlib.Path)):
-        paths_list = [readable_file_or_dir_or_object(path) for path in paths.split(',')]
+        paths_list = [readable_file_or_dir_or_object(path) for path in str(paths).split(',')]
 
     return paths_list[0] if isinstance(paths, (list, tuple)) and len(paths_list) == 1 else paths_list
 
@@ -331,7 +331,7 @@ def readable_files_or_empty(paths: [str, list, tuple]):
     if isinstance(paths, (list, tuple)):
         return [readable_file_or_object(path) for path in paths]
     if isinstance(paths, (str, pathlib.Path)):
-        paths_list = [readable_file_or_object(path) for path in paths.split(',')]
+        paths_list = [readable_file_or_object(path) for path in str(paths).split(',')]
         return paths_list
     return paths
 
diff --git a/tools/ovc/unit_tests/ovc/convert/import_from_mo_test.py b/tools/ovc/unit_tests/ovc/convert/import_from_mo_test.py
index e2aa1a504f6..49284fc501a 100644
--- a/tools/ovc/unit_tests/ovc/convert/import_from_mo_test.py
+++ b/tools/ovc/unit_tests/ovc/convert/import_from_mo_test.py
@@ -78,9 +78,9 @@ class ConvertImportMOTest(UnitTestWithMockedTelemetry):
         with tempfile.TemporaryDirectory(dir=self.test_directory) as tmpdir:
             model = self.create_onnx_model()
             model_path = save_to_onnx(model, tmpdir)
-            out_xml = os.path.join(tmpdir, Path("model.xml"))
+            out_xml = os.path.join(tmpdir, "model.xml")
 
-            ov_model = convert_model(input_model=model_path)
+            ov_model = convert_model(Path(model_path))
             serialize(ov_model, out_xml.encode('utf-8'), out_xml.replace('.xml', '.bin').encode('utf-8'))
 
             #TODO: check that model is correct