diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index 707557bf..c4e763f8 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -60,11 +60,11 @@ jobs:
           - # test with the latest dependencies
             os: ubuntu-latest
             python-version: '3.11'
-            toxenv-factors: 'current'
+            toxenv-factors: '-current'
           - # test with the lowest dependencies
             os: ubuntu-latest
             python-version: '3.7'
-            toxenv-factors: 'lowest'
+            toxenv-factors: '-lowest'
     steps:
       - name: Checkout
         # see https://github.com/actions/checkout
diff --git a/tests/test_validation_json.py b/tests/test_validation_json.py
index 583a597b..00c91851 100644
--- a/tests/test_validation_json.py
+++ b/tests/test_validation_json.py
@@ -38,7 +38,7 @@
 def _dp(prefix: str) -> Generator:
     return (
         (sv, tf) for sv in SchemaVersion if sv not in UNSUPPORTED_SCHEMA_VERSIONS
-        for tf in iglob(f'{prefix}-*.json', root_dir=join(RELEVANT_TESTDATA_DIRECTORY, sv.to_version()))
+        for tf in iglob(join(RELEVANT_TESTDATA_DIRECTORY, sv.to_version(), f'{prefix}-*.json'))
     )
 
 
@@ -54,7 +54,7 @@ def test_throws_with_unsupported_schema_version(self, schema_version: SchemaVers
     @unpack
     def test_validate_no_none(self, schema_version: SchemaVersion, test_data_file: str) -> None:
         validator = JsonValidator(schema_version)
-        with open(join(RELEVANT_TESTDATA_DIRECTORY, schema_version.to_version(), test_data_file), 'r') as tdfh:
+        with open(join(test_data_file), 'r') as tdfh:
             test_data = tdfh.read()
         try:
             validation_error = validator.validate_str(test_data)
@@ -66,7 +66,7 @@ def test_validate_no_none(self, schema_version: SchemaVersion, test_data_file: s
     @unpack
     def test_validate_expected_error(self, schema_version: SchemaVersion, test_data_file: str) -> None:
         validator = JsonValidator(schema_version)
-        with open(join(RELEVANT_TESTDATA_DIRECTORY, schema_version.to_version(), test_data_file), 'r') as tdfh:
+        with open(join(test_data_file), 'r') as tdfh:
             test_data = tdfh.read()
         try:
             validation_error = validator.validate_str(test_data)
@@ -88,7 +88,7 @@ def test_throws_with_unsupported_schema_version(self, schema_version: SchemaVers
     @unpack
     def test_validate_no_none(self, schema_version: SchemaVersion, test_data_file: str) -> None:
         validator = JsonStrictValidator(schema_version)
-        with open(join(RELEVANT_TESTDATA_DIRECTORY, schema_version.to_version(), test_data_file), 'r') as tdfh:
+        with open(join(test_data_file), 'r') as tdfh:
             test_data = tdfh.read()
         try:
             validation_error = validator.validate_str(test_data)
@@ -100,7 +100,7 @@ def test_validate_no_none(self, schema_version: SchemaVersion, test_data_file: s
     @unpack
     def test_validate_expected_error(self, schema_version: SchemaVersion, test_data_file: str) -> None:
         validator = JsonStrictValidator(schema_version)
-        with open(join(RELEVANT_TESTDATA_DIRECTORY, schema_version.to_version(), test_data_file), 'r') as tdfh:
+        with open(join(test_data_file), 'r') as tdfh:
             test_data = tdfh.read()
         try:
             validation_error = validator.validate_str(test_data)