diff --git a/healthcheck/healthcheck.py b/healthcheck/healthcheck.py
index 6a71b13..3064651 100644
--- a/healthcheck/healthcheck.py
+++ b/healthcheck/healthcheck.py
@@ -79,11 +79,11 @@ class Healthcheck:
     def __init__(
         self,
         name: str,
-        components: List[HealthcheckComponentInterface] = [],
+        components: Optional[List[HealthcheckComponentInterface]] = None,
         warn_is_unhealthy: bool = False,
     ) -> None:
         self.name = name
-        self.components: List[HealthcheckComponentInterface] = components
+        self.components: List[HealthcheckComponentInterface] = components or []
         self.warn_is_unhealthy = warn_is_unhealthy
 
         self.checks: Dict[str, List[HealthcheckComponentStatus]] = {}
diff --git a/poetry.lock b/poetry.lock
index e617dd7..27f005e 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,22 @@
-# This file is automatically @generated by Poetry 1.5.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.6.1 and should not be changed by hand.
+
+[[package]]
+name = "attrs"
+version = "23.1.0"
+description = "Classes Without Boilerplate"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "attrs-23.1.0-py3-none-any.whl", hash = "sha256:1f28b4522cdc2fb4256ac1a020c78acf9cba2c6b461ccd2c126f3aa8e8335d04"},
+    {file = "attrs-23.1.0.tar.gz", hash = "sha256:6279836d581513a26f1bf235f9acd333bc9115683f14f7e8fae46c98fc50e015"},
+]
+
+[package.extras]
+cov = ["attrs[tests]", "coverage[toml] (>=5.3)"]
+dev = ["attrs[docs,tests]", "pre-commit"]
+docs = ["furo", "myst-parser", "sphinx", "sphinx-notfound-page", "sphinxcontrib-towncrier", "towncrier", "zope-interface"]
+tests = ["attrs[tests-no-zope]", "zope-interface"]
+tests-no-zope = ["cloudpickle", "hypothesis", "mypy (>=1.1.1)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-xdist[psutil]"]
 
 [[package]]
 name = "black"
@@ -164,6 +182,24 @@ mccabe = ">=0.7.0,<0.8.0"
 pycodestyle = ">=2.11.0,<2.12.0"
 pyflakes = ">=3.1.0,<3.2.0"
 
+[[package]]
+name = "flake8-bugbear"
+version = "23.12.2"
+description = "A plugin for flake8 finding likely bugs and design problems in your program. Contains warnings that don't belong in pyflakes and pycodestyle."
+optional = false
+python-versions = ">=3.8.1"
+files = [
+    {file = "flake8-bugbear-23.12.2.tar.gz", hash = "sha256:32b2903e22331ae04885dae25756a32a8c666c85142e933f43512a70f342052a"},
+    {file = "flake8_bugbear-23.12.2-py3-none-any.whl", hash = "sha256:83324bad4d90fee4bf64dd69c61aff94debf8073fbd807c8b6a36eec7a2f0719"},
+]
+
+[package.dependencies]
+attrs = ">=19.2.0"
+flake8 = ">=6.0.0"
+
+[package.extras]
+dev = ["coverage", "hypothesis", "hypothesmith (>=0.2)", "pre-commit", "pytest", "tox"]
+
 [[package]]
 name = "iniconfig"
 version = "2.0.0"
@@ -399,4 +435,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8.1"
-content-hash = "cfa3dd45bd1a170b5601e492f55f8d8145563bb3f443a510f20fbcc0607d782b"
+content-hash = "99af2562fb506e695a0097d1afeeec051d497ea04ee44180607d626bb17214a9"
diff --git a/pyproject.toml b/pyproject.toml
index b2f5fd4..4a29e76 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,6 +17,7 @@ isort = "^5.12.0"
 flake8 = "^6.1.0"
 mypy = "^1.6.1"
 pytest-cov = "^4.1.0"
+flake8-bugbear = "^23.12.2"
 
 [build-system]
 requires = ["poetry-core"]