diff --git a/poetry.lock b/poetry.lock
index a9de772..52279d1 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -515,7 +515,7 @@ python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
 [[package]]
 name = "tox"
-version = "3.24.1"
+version = "3.25.0"
 description = "tox is a generic virtualenv management and test command line tool"
 category = "dev"
 optional = false
@@ -534,7 +534,7 @@ 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"
@@ -937,8 +937,8 @@ toml = [
     {file = "toml-0.10.2.tar.gz", hash = "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"},
 ]
 tox = [
-    {file = "tox-3.24.1-py2.py3-none-any.whl", hash = "sha256:60eda26fa47b7130e6fc1145620b1fd897963af521093c3685c3f63d1c394029"},
-    {file = "tox-3.24.1.tar.gz", hash = "sha256:9850daeb96d21b4abf049bc5f197426123039e383ebfed201764e9355fc5a880"},
+    {file = "tox-3.25.0-py2.py3-none-any.whl", hash = "sha256:0805727eb4d6b049de304977dfc9ce315a1938e6619c3ab9f38682bb04662a5a"},
+    {file = "tox-3.25.0.tar.gz", hash = "sha256:37888f3092aa4e9f835fc8cc6dadbaaa0782651c41ef359e3a5743fcb0308160"},
 ]
 typed-ast = [
     {file = "typed_ast-1.4.1-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:73d785a950fc82dd2a25897d525d003f6378d1cb23ab305578394694202a58c3"},