diff --git a/.vscode/settings.json b/.vscode/settings.json
index cbff4d9..ff4a908 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -2,9 +2,5 @@
     "[python]": {
         "editor.defaultFormatter": "ms-python.autopep8",
     },
-    "python.testing.pytestArgs": [
-        "tests"
-    ],
-    "python.testing.unittestEnabled": false,
-    "python.testing.pytestEnabled": true
+    "python.testing.unittestEnabled": true
 }
\ No newline at end of file
diff --git a/README.md b/README.md
index 9a9ce54..113e09c 100644
--- a/README.md
+++ b/README.md
@@ -160,7 +160,7 @@ python3 -m venv .venv
 source .venv/bin/activate
 
 # prepare the environment
-pip3 install -e .
+pip3 install -e '.[dev]'
 
 # run the server from within the virtual environment
 cd src/
diff --git a/setup.py b/setup.py
index 7a91d65..96f7774 100644
--- a/setup.py
+++ b/setup.py
@@ -38,9 +38,9 @@ def read_version(fname="src/whisper_api/version.py"):
     include_package_data=True,
     extras_require={
         "dev": [
-            "pytest",
-            "pre-commit",
-            "autopep8"
+            "autopep8",
+            "httpx",
+            "pre-commit"
         ]
     },
 )
diff --git a/test/__init__.py b/test/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/test/test_frontend.py b/test/test_frontend.py
new file mode 100644
index 0000000..68e2aac
--- /dev/null
+++ b/test/test_frontend.py
@@ -0,0 +1,43 @@
+import unittest
+from fastapi.testclient import TestClient
+from whisper_api import app
+
+"""
+Test that the frontend files are served correctly.
+"""
+
+client = TestClient(app)
+
+
+class TestFrontend(unittest.TestCase):
+
+    def test_index_html(self):
+        """
+        Test that the index.html file is served correctly.
+        """
+        response = client.get("/index.html")
+        assert response.status_code == 200
+        assert response.headers["content-type"] == "text/html; charset=utf-8"
+
+    def test_script_js(self):
+        """
+        Test that the script.js file is served correctly.
+        """
+        response = client.get("/script.js")
+        assert response.status_code == 200
+        assert response.headers["content-type"] == "text/javascript; charset=utf-8"
+
+    def test_styles_css(self):
+        """
+        Test that the styles.css file is served correctly.
+        """
+        response = client.get("/styles.css")
+        assert response.status_code == 200
+        assert response.headers["content-type"] == "text/css; charset=utf-8"
+
+    def test_not_found(self):
+        """
+        Test that a 404 error is returned when a file is not found.
+        """
+        response = client.get("/not_found")
+        assert response.status_code == 404
diff --git a/test/test_import.py b/test/test_import.py
new file mode 100644
index 0000000..af17afb
--- /dev/null
+++ b/test/test_import.py
@@ -0,0 +1,11 @@
+import unittest
+
+
+class TestImport(unittest.TestCase):
+
+    def test_import_whisper_api(self):
+        try:
+            import whisper_api
+            assert whisper_api
+        except ImportError:
+            unittest.fail("Failed to import whisper_api")
diff --git a/tests/test_frontend.py b/tests/test_frontend.py
deleted file mode 100644
index e66cd9b..0000000
--- a/tests/test_frontend.py
+++ /dev/null
@@ -1,45 +0,0 @@
-import pytest
-from fastapi.testclient import TestClient
-from whisper_api import app
-
-
-"""
-Test that the frontend files are served correctly.
-"""
-
-client = TestClient(app)
-
-
-def test_index_html():
-    """
-    Test that the index.html file is served correctly.
-    """
-    response = client.get("/index.html")
-    assert response.status_code == 200
-    assert response.headers["content-type"] == "text/html; charset=utf-8"
-
-
-def test_script_js():
-    """
-    Test that the script.js file is served correctly.
-    """
-    response = client.get("/script.js")
-    assert response.status_code == 200
-    assert response.headers["content-type"] == "application/javascript"
-
-
-def test_styles_css():
-    """
-    Test that the styles.css file is served correctly.
-    """
-    response = client.get("/styles.css")
-    assert response.status_code == 200
-    assert response.headers["content-type"] == "text/css; charset=utf-8"
-
-
-def test_not_found():
-    """
-    Test that a 404 error is returned when a file is not found.
-    """
-    response = client.get("/not_found")
-    assert response.status_code == 404
diff --git a/tests/test_import.py b/tests/test_import.py
deleted file mode 100644
index a598f99..0000000
--- a/tests/test_import.py
+++ /dev/null
@@ -1,9 +0,0 @@
-import pytest
-
-
-def test_import_whisper_api():
-    try:
-        import whisper_api
-        assert whisper_api
-    except ImportError:
-        pytest.fail("Failed to import whisper_api")