diff --git a/poetry.lock b/poetry.lock
index 9a6ea94..386c856 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1225,7 +1225,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [[package]]
 name = "tox"
-version = "3.23.0"
+version = "3.25.1"
 description = "tox is a generic virtualenv management and test command line tool"
 category = "dev"
 optional = false
@@ -1243,7 +1243,7 @@ virtualenv = ">=16.0.0,<20.0.0 || >20.0.0,<20.0.1 || >20.0.1,<20.0.2 || >20.0.2,
 
 [package.extras]
 docs = ["pygments-github-lexers (>=0.0.5)", "sphinx (>=2.0.0)", "sphinxcontrib-autoprogram (>=0.1.5)", "towncrier (>=18.5.0)"]
-testing = ["flaky (>=3.4.0)", "freezegun (>=0.3.11)", "psutil (>=5.6.1)", "pytest (>=4.0.0)", "pytest-cov (>=2.5.1)", "pytest-mock (>=1.10.0)", "pytest-randomly (>=1.0.0)", "pytest-xdist (>=1.22.2)", "pathlib2 (>=2.3.3)"]
+testing = ["flaky (>=3.4.0)", "freezegun (>=0.3.11)", "pytest (>=4.0.0)", "pytest-cov (>=2.5.1)", "pytest-mock (>=1.10.0)", "pytest-randomly (>=1.0.0)", "psutil (>=5.6.1)", "pathlib2 (>=2.3.3)"]
 
 [[package]]
 name = "typed-ast"
@@ -1351,7 +1351,7 @@ python-versions = "*"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.9"
-content-hash = "1a8e7e4fb91b4058d8e3c6292b092fd50f7963fea646172c45bcfe4749ef4b6c"
+content-hash = "9863810a5e30ec7b0dd52efc2fd7d9548e9e7d875a30de96ab0f916a7c5928e8"
 
 [metadata.files]
 alabaster = [
@@ -1986,8 +1986,8 @@ tomlkit = [
     {file = "tomlkit-0.7.0.tar.gz", hash = "sha256:ac57f29693fab3e309ea789252fcce3061e19110085aa31af5446ca749325618"},
 ]
 tox = [
-    {file = "tox-3.23.0-py2.py3-none-any.whl", hash = "sha256:e007673f3595cede9b17a7c4962389e4305d4a3682a6c5a4159a1453b4f326aa"},
-    {file = "tox-3.23.0.tar.gz", hash = "sha256:05a4dbd5e4d3d8269b72b55600f0b0303e2eb47ad5c6fe76d3576f4c58d93661"},
+    {file = "tox-3.25.1-py2.py3-none-any.whl", hash = "sha256:c38e15f4733683a9cc0129fba078633e07eb0961f550a010ada879e95fb32632"},
+    {file = "tox-3.25.1.tar.gz", hash = "sha256:c138327815f53bc6da4fe56baec5f25f00622ae69ef3fe4e1e385720e22486f9"},
 ]
 typed-ast = [
     {file = "typed_ast-1.4.2-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:7703620125e4fb79b64aa52427ec192822e9f45d37d4b6625ab37ef403e1df70"},
diff --git a/pyproject.toml b/pyproject.toml
index b433f89..3ec8778 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -69,7 +69,7 @@ m2r = "^0.2"
 tomlkit = "^0.7.0"
 
 flake8 = "^3.9.0"
-tox = "^3.23.0"
+tox = "^3.25.1"
 pylint = "^2.7.2"
 black = "^20.8b1"
 pre-commit = "^2.11.1"