diff --git a/poetry.lock b/poetry.lock
index 95eb9eaeb..634d173a7 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -27,7 +27,7 @@ python-versions = "*"
 
 [[package]]
 name = "astroid"
-version = "2.6.6"
+version = "2.7.2"
 description = "An abstract syntax tree for Python with inference support."
 category = "dev"
 optional = false
@@ -267,18 +267,20 @@ test = ["flake8 (>=3.8.4,<3.9.0)", "pycodestyle (>=2.6.0,<2.7.0)", "mypy (>=0.91
 
 [[package]]
 name = "importlib-metadata"
-version = "2.1.1"
+version = "4.6.4"
 description = "Read metadata from Python packages"
 category = "main"
 optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+python-versions = ">=3.6"
 
 [package.dependencies]
+typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"
 
 [package.extras]
-docs = ["sphinx", "rst.linker"]
-testing = ["packaging", "pep517", "unittest2", "importlib-resources (>=1.3)"]
+docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
+perf = ["ipython"]
+testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-perf (>=0.9.2)", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
 
 [[package]]
 name = "iniconfig"
@@ -393,6 +395,18 @@ category = "main"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 
+[[package]]
+name = "platformdirs"
+version = "2.2.0"
+description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.extras]
+docs = ["Sphinx (>=4)", "furo (>=2021.7.5b38)", "proselint (>=0.10.2)", "sphinx-autodoc-typehints (>=1.12)"]
+test = ["appdirs (==1.4.4)", "pytest (>=6)", "pytest-cov (>=2.7)", "pytest-mock (>=3.6)"]
+
 [[package]]
 name = "pluggy"
 version = "0.13.1"
@@ -460,17 +474,18 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "pylint"
-version = "2.9.6"
+version = "2.10.2"
 description = "python code static checker"
 category = "dev"
 optional = false
 python-versions = "~=3.6"
 
 [package.dependencies]
-astroid = ">=2.6.5,<2.7"
+astroid = ">=2.7.2,<2.8"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
 isort = ">=4.2.5,<6"
 mccabe = ">=0.6,<0.7"
+platformdirs = ">=2.2.0"
 toml = ">=0.7.1"
 
 [[package]]
@@ -565,7 +580,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*"
 
 [[package]]
 name = "regex"
-version = "2021.8.3"
+version = "2021.8.21"
 description = "Alternative regular expression module, to replace re."
 category = "main"
 optional = false
@@ -788,7 +803,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.6.2"
-content-hash = "ff688af0d4fa0cf8ed93e8a830c67946f58a5c8fb3be0ea446a46fc57f25bc3e"
+content-hash = "5751e906ef4710a587539d0ec2a6bb4c4e6753bf6b97059f27ebb88bb6fa78a9"
 
 [metadata.files]
 anyio = [
@@ -800,8 +815,8 @@ appdirs = [
     {file = "appdirs-1.4.4.tar.gz", hash = "sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41"},
 ]
 astroid = [
-    {file = "astroid-2.6.6-py3-none-any.whl", hash = "sha256:ab7f36e8a78b8e54a62028ba6beef7561db4cdb6f2a5009ecc44a6f42b5697ef"},
-    {file = "astroid-2.6.6.tar.gz", hash = "sha256:3975a0bd5373bdce166e60c851cfcbaf21ee96de80ec518c1f4cb3e94c3fb334"},
+    {file = "astroid-2.7.2-py3-none-any.whl", hash = "sha256:ecc50f9b3803ebf8ea19aa2c6df5622d8a5c31456a53c741d3be044d96ff0948"},
+    {file = "astroid-2.7.2.tar.gz", hash = "sha256:b6c2d75cd7c2982d09e7d41d70213e863b3ba34d3bd4014e08f167cee966e99e"},
 ]
 async-generator = [
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@@ -953,8 +968,8 @@ immutables = [
     {file = "immutables-0.16.tar.gz", hash = "sha256:d67e86859598eed0d926562da33325dac7767b7b1eff84e232c22abea19f4360"},
 ]
 importlib-metadata = [
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-    {file = "importlib_metadata-2.1.1.tar.gz", hash = "sha256:b8de9eff2b35fb037368f28a7df1df4e6436f578fa74423505b6c6a778d5b5dd"},
+    {file = "importlib_metadata-4.6.4-py3-none-any.whl", hash = "sha256:ed5157fef23a4bc4594615a0dd8eba94b2bb36bf2a343fa3d8bb2fa0a62a99d5"},
+    {file = "importlib_metadata-4.6.4.tar.gz", hash = "sha256:7b30a78db2922d78a6f47fb30683156a14f3c6aa5cc23f77cc8967e9ab2d002f"},
 ]
 iniconfig = [
     {file = "iniconfig-1.1.1-py2.py3-none-any.whl", hash = "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3"},
@@ -1073,6 +1088,10 @@ pathspec = [
     {file = "pathspec-0.9.0-py2.py3-none-any.whl", hash = "sha256:7d15c4ddb0b5c802d161efc417ec1a2558ea2653c2e8ad9c19098201dc1c993a"},
     {file = "pathspec-0.9.0.tar.gz", hash = "sha256:e564499435a2673d586f6b2130bb5b95f04a3ba06f81b8f895b651a3c76aabb1"},
 ]
+platformdirs = [
+    {file = "platformdirs-2.2.0-py3-none-any.whl", hash = "sha256:4666d822218db6a262bdfdc9c39d21f23b4cfdb08af331a81e92751daf6c866c"},
+    {file = "platformdirs-2.2.0.tar.gz", hash = "sha256:632daad3ab546bd8e6af0537d09805cec458dce201bccfe23012df73332e181e"},
+]
 pluggy = [
     {file = "pluggy-0.13.1-py2.py3-none-any.whl", hash = "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"},
     {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
@@ -1144,8 +1163,8 @@ pyflakes = [
     {file = "pyflakes-2.3.1.tar.gz", hash = "sha256:f5bc8ecabc05bb9d291eb5203d6810b49040f6ff446a756326104746cc00c1db"},
 ]
 pylint = [
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-    {file = "pylint-2.9.6.tar.gz", hash = "sha256:8b838c8983ee1904b2de66cce9d0b96649a91901350e956d78f289c3bc87b48e"},
+    {file = "pylint-2.10.2-py3-none-any.whl", hash = "sha256:e178e96b6ba171f8ef51fbce9ca30931e6acbea4a155074d80cc081596c9e852"},
+    {file = "pylint-2.10.2.tar.gz", hash = "sha256:6758cce3ddbab60c52b57dcc07f0c5d779e5daf0cf50f6faacbef1d3ea62d2a1"},
 ]
 pyparsing = [
     {file = "pyparsing-2.4.7-py2.py3-none-any.whl", hash = "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"},
@@ -1202,39 +1221,47 @@ pyyaml = [
     {file = "PyYAML-5.4.1.tar.gz", hash = "sha256:607774cbba28732bfa802b54baa7484215f530991055bb562efbed5b2f20a45e"},
 ]
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diff --git a/pyproject.toml b/pyproject.toml
index fc0ca40e3..1f0cc95ee 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ shellingham = "^1.3.2"
 black = "*"
 isort = "^5.0.5"
 pyyaml = "^5.3.1"
-importlib_metadata = {version = "^2.0.0", python = "<3.8"}
+importlib_metadata = {version = ">2,<5", python = "<3.8"}
 pydantic = "^1.6.1"
 attrs = "^21.0.0"
 python-dateutil = "^2.8.1"