diff --git a/swcc/setup.py b/swcc/setup.py
index 3b8a0085..1d21db02 100644
--- a/swcc/setup.py
+++ b/swcc/setup.py
@@ -43,6 +43,7 @@
         'rich',
         'toml',
         'tqdm',
+        'typing-extensions ; python_version < "3.8"',
     ],
     entry_points={'console_scripts': ['swcc=swcc.cli:main']},
     extras_require={'dev': ['factory_boy', 'ipython', 'tox']},
diff --git a/swcc/swcc/models.py b/swcc/swcc/models.py
index e431a2c9..0397a509 100644
--- a/swcc/swcc/models.py
+++ b/swcc/swcc/models.py
@@ -2,19 +2,38 @@
 
 from pathlib import Path, PurePath
 from tempfile import TemporaryDirectory
-from typing import (
-    Any,
-    Dict,
-    Generic,
-    Iterator,
-    Literal,
-    Optional,
-    Tuple,
-    Type,
-    TypeVar,
-    Union,
-    get_args,
-)
+
+try:
+    from typing import (
+        Any,
+        Dict,
+        Generic,
+        Iterator,
+        Literal,
+        Optional,
+        Tuple,
+        Type,
+        TypeVar,
+        Union,
+        get_args,
+    )
+except ImportError:
+    from typing import (
+        Any,
+        Dict,
+        Generic,
+        Iterator,
+        Optional,
+        Tuple,
+        Type,
+        TypeVar,
+        Union,
+    )
+    from typing_extensions import (  # type: ignore
+        Literal,
+        get_args,
+    )
+
 from urllib.parse import unquote
 
 from openpyxl import load_workbook
diff --git a/swcc/tox.ini b/swcc/tox.ini
index 0dd9eb80..44db4ac4 100644
--- a/swcc/tox.ini
+++ b/swcc/tox.ini
@@ -55,6 +55,21 @@ deps =
 commands =
     pytest {posargs}
 
+[testenv:py37]
+install_command = pip install --ignore-requires-python {opts} {packages}
+basepython=python3.7
+passenv =
+    DJANGO_BASE_URL
+    DJANGO_SUPERUSER_EMAIL
+    DJANGO_SUPERUSER_PASSWORD
+deps =
+    pytest
+    click
+    pytest-factoryboy
+    pytest-mock
+commands =
+    pytest {posargs}
+
 [testenv:release]
 skipsdist = true
 skip_install = true