diff --git a/poetry.lock b/poetry.lock
index 7bd5c31..246493f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,23 +1,5 @@
 # This file is automatically @generated by Poetry and should not be changed by hand.
 
-[[package]]
-name = "attrs"
-version = "21.4.0"
-description = "Classes Without Boilerplate"
-category = "dev"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-files = [
-    {file = "attrs-21.4.0-py2.py3-none-any.whl", hash = "sha256:2d27e3784d7a565d36ab851fe94887c5eccd6a463168875832a1be79c82828b4"},
-    {file = "attrs-21.4.0.tar.gz", hash = "sha256:626ba8234211db98e869df76230a137c4c40a12d72445c45d5f5b716f076e2fd"},
-]
-
-[package.extras]
-dev = ["cloudpickle", "coverage[toml] (>=5.0.2)", "furo", "hypothesis", "mypy", "pre-commit", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "six", "sphinx", "sphinx-notfound-page", "zope.interface"]
-docs = ["furo", "sphinx", "sphinx-notfound-page", "zope.interface"]
-tests = ["cloudpickle", "coverage[toml] (>=5.0.2)", "hypothesis", "mypy", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "six", "zope.interface"]
-tests-no-zope = ["cloudpickle", "coverage[toml] (>=5.0.2)", "hypothesis", "mypy", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "six"]
-
 [[package]]
 name = "black"
 version = "23.3.0"
@@ -277,18 +259,17 @@ virtualenv = ">=20.10.0"
 
 [[package]]
 name = "pytest"
-version = "7.2.2"
+version = "7.3.0"
 description = "pytest: simple powerful testing with Python"
 category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "pytest-7.2.2-py3-none-any.whl", hash = "sha256:130328f552dcfac0b1cec75c12e3f005619dc5f874f0a06e8ff7263f0ee6225e"},
-    {file = "pytest-7.2.2.tar.gz", hash = "sha256:c99ab0c73aceb050f68929bc93af19ab6db0558791c6a0715723abe9d0ade9d4"},
+    {file = "pytest-7.3.0-py3-none-any.whl", hash = "sha256:933051fa1bfbd38a21e73c3960cebdad4cf59483ddba7696c48509727e17f201"},
+    {file = "pytest-7.3.0.tar.gz", hash = "sha256:58ecc27ebf0ea643ebfdf7fb1249335da761a00c9f955bcd922349bcb68ee57d"},
 ]
 
 [package.dependencies]
-attrs = ">=19.2.0"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
 exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
 iniconfig = "*"
@@ -297,7 +278,7 @@ pluggy = ">=0.12,<2.0"
 tomli = {version = ">=1.0.0", markers = "python_version < \"3.11\""}
 
 [package.extras]
-testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "xmlschema"]
+testing = ["argcomplete", "attrs (>=19.2.0)", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "xmlschema"]
 
 [[package]]
 name = "pyyaml"
@@ -410,4 +391,4 @@ testing = ["coverage (>=4)", "coverage-enable-subprocess (>=1)", "flaky (>=3)",
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8"
-content-hash = "ae0cd97078607dce0c5344348d445ec0379814736dc0e436e307fa3a9578c7dd"
+content-hash = "53315001dbe235a4ac206df54d1048f5dc19e7d047f485b1d9d5c960b23f1576"
diff --git a/pyproject.toml b/pyproject.toml
index 5345843..a90afb5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ keywords = [ "counter", "statistics" ]
 python = "^3.8"
 
 [tool.poetry.dev-dependencies]
-pytest = "^7.2"
+pytest = "^7.3"
 pre-commit = "^3.2.2"
 black = "^23.3.0"