diff --git a/half_past_five/half_past_five.py b/half_past_five/half_past_five.py
index 1cda84b..0497538 100755
--- a/half_past_five/half_past_five.py
+++ b/half_past_five/half_past_five.py
@@ -40,7 +40,7 @@ def __call__(self, cls):
         return cls
     
 
-class BaseHandler(tornado.web.RequestHandler):
+class BaseHandler(RequestHandler):
 
     def set_default_headers(self):
         self.set_header("Access-Control-Allow-Origin", "*")
diff --git a/poetry.lock b/poetry.lock
index 5116cd8..5b2cd58 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -310,6 +310,18 @@ files = [
     {file = "charset_normalizer-3.3.2-py3-none-any.whl", hash = "sha256:3e4d1f6587322d2788836a99c69062fbb091331ec940e02d12d179c1d53e25fc"},
 ]
 
+[[package]]
+name = "colorama"
+version = "0.4.6"
+description = "Cross-platform colored terminal text."
+category = "dev"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+files = [
+    {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
+    {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
+]
+
 [[package]]
 name = "idna"
 version = "3.7"
@@ -322,6 +334,18 @@ files = [
     {file = "idna-3.7.tar.gz", hash = "sha256:028ff3aadf0609c1fd278d8ea3089299412a7a8b9bd005dd08b9f8285bcb5cfc"},
 ]
 
+[[package]]
+name = "iniconfig"
+version = "2.0.0"
+description = "brain-dead simple config-ini parsing"
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "iniconfig-2.0.0-py3-none-any.whl", hash = "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"},
+    {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
+]
+
 [[package]]
 name = "mutagen"
 version = "1.47.0"
@@ -334,6 +358,34 @@ files = [
     {file = "mutagen-1.47.0.tar.gz", hash = "sha256:719fadef0a978c31b4cf3c956261b3c58b6948b32023078a2117b1de09f0fc99"},
 ]
 
+[[package]]
+name = "packaging"
+version = "24.1"
+description = "Core utilities for Python packages"
+category = "dev"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "packaging-24.1-py3-none-any.whl", hash = "sha256:5b8f2217dbdbd2f7f384c41c628544e6d52f2d0f53c6d0c3ea61aa5d1d7ff124"},
+    {file = "packaging-24.1.tar.gz", hash = "sha256:026ed72c8ed3fcce5bf8950572258698927fd1dbda10a5e981cdf0ac37f4f002"},
+]
+
+[[package]]
+name = "pluggy"
+version = "1.5.0"
+description = "plugin and hook calling mechanisms for python"
+category = "dev"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pluggy-1.5.0-py3-none-any.whl", hash = "sha256:44e1ad92c8ca002de6377e165f3e0f1be63266ab4d554740532335b9d75ea669"},
+    {file = "pluggy-1.5.0.tar.gz", hash = "sha256:2cffa88e94fdc978c4c574f15f9e59b7f4201d439195c3715ca9e2486f1d0cf1"},
+]
+
+[package.extras]
+dev = ["pre-commit", "tox"]
+testing = ["pytest", "pytest-benchmark"]
+
 [[package]]
 name = "pycparser"
 version = "2.22"
@@ -388,6 +440,27 @@ files = [
     {file = "pycryptodomex-3.20.0.tar.gz", hash = "sha256:7a710b79baddd65b806402e14766c721aee8fb83381769c27920f26476276c1e"},
 ]
 
+[[package]]
+name = "pytest"
+version = "8.2.2"
+description = "pytest: simple powerful testing with Python"
+category = "dev"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pytest-8.2.2-py3-none-any.whl", hash = "sha256:c434598117762e2bd304e526244f67bf66bbd7b5d6cf22138be51ff661980343"},
+    {file = "pytest-8.2.2.tar.gz", hash = "sha256:de4bb8104e201939ccdc688b27a89a7be2079b22e2bd2b07f806b6ba71117977"},
+]
+
+[package.dependencies]
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+iniconfig = "*"
+packaging = "*"
+pluggy = ">=1.5,<2.0"
+
+[package.extras]
+dev = ["argcomplete", "attrs (>=19.2)", "hypothesis (>=3.56)", "mock", "pygments (>=2.7.2)", "requests", "setuptools", "xmlschema"]
+
 [[package]]
 name = "requests"
 version = "2.32.3"
@@ -566,4 +639,4 @@ test = ["pytest (>=8.1,<9.0)"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "6a573482fbfe68b8c963a5fb0caa60b9f27b3db1e240524dd1c4c60df20a4a19"
+content-hash = "298b5c4dc416c375d48d554271705cef2437aa62d15c70ff790984c1297e2cba"
diff --git a/pyproject.toml b/pyproject.toml
index d18301b..4ff6533 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,6 +11,9 @@ tornado = "^6.4.1"
 yt-dlp = "^2024.7.2"
 
 
+[tool.poetry.group.dev.dependencies]
+pytest = "^8.2.2"
+
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"