diff --git a/poetry.lock b/poetry.lock
index 328d9c3..7071879 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -8,16 +8,17 @@ python-versions = "*"
 
 [[package]]
 name = "astroid"
-version = "2.5.2"
+version = "2.9.0"
 description = "An abstract syntax tree for Python with inference support."
 category = "dev"
 optional = false
-python-versions = ">=3.6"
+python-versions = "~=3.6"
 
 [package.dependencies]
 lazy-object-proxy = ">=1.4.0"
-typed-ast = {version = ">=1.4.0,<1.5", markers = "implementation_name == \"cpython\" and python_version < \"3.8\""}
-wrapt = ">=1.11,<1.13"
+typed-ast = {version = ">=1.4.0,<2.0", markers = "implementation_name == \"cpython\" and python_version < \"3.8\""}
+typing-extensions = {version = ">=3.10", markers = "python_version < \"3.10\""}
+wrapt = ">=1.11,<1.14"
 
 [[package]]
 name = "atomicwrites"
@@ -386,6 +387,18 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "platformdirs"
+version = "2.4.0"
+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"
@@ -460,21 +473,20 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "pylint"
-version = "2.7.4"
+version = "2.12.0"
 description = "python code static checker"
 category = "dev"
 optional = false
 python-versions = "~=3.6"
 
 [package.dependencies]
-astroid = ">=2.5.2,<2.7"
+astroid = ">=2.9.0,<2.10"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
 isort = ">=4.2.5,<6"
 mccabe = ">=0.6,<0.7"
-toml = ">=0.7.1"
-
-[package.extras]
-docs = ["sphinx (==3.5.1)", "python-docs-theme (==2020.12)"]
+platformdirs = ">=2.2.0"
+toml = ">=0.9.2"
+typing-extensions = {version = ">=3.10.0", markers = "python_version < \"3.10\""}
 
 [[package]]
 name = "pyparsing"
@@ -646,11 +658,11 @@ python-versions = "*"
 
 [[package]]
 name = "typing-extensions"
-version = "3.7.4.3"
-description = "Backported and Experimental Type Hints for Python 3.5+"
+version = "4.0.0"
+description = "Backported and Experimental Type Hints for Python 3.6+"
 category = "main"
 optional = false
-python-versions = "*"
+python-versions = ">=3.6"
 
 [[package]]
 name = "virtualenv"
@@ -695,7 +707,7 @@ testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.6.1"
-content-hash = "7a779485f1f713e8f386d747363e4c85d46b43d55894f00c6a60b5ec34739d7e"
+content-hash = "55a6f297c36fd011d84ea4e395634b9600fb1f89a0b0c1614570ba5618bf3583"
 
 [metadata.files]
 appdirs = [
@@ -703,8 +715,8 @@ appdirs = [
     {file = "appdirs-1.4.4.tar.gz", hash = "sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41"},
 ]
 astroid = [
-    {file = "astroid-2.5.2-py3-none-any.whl", hash = "sha256:cd80bf957c49765dce6d92c43163ff9d2abc43132ce64d4b1b47717c6d2522df"},
-    {file = "astroid-2.5.2.tar.gz", hash = "sha256:6b0ed1af831570e500e2437625979eaa3b36011f66ddfc4ce930128610258ca9"},
+    {file = "astroid-2.9.0-py3-none-any.whl", hash = "sha256:776ca0b748b4ad69c00bfe0fff38fa2d21c338e12c84aa9715ee0d473c422778"},
+    {file = "astroid-2.9.0.tar.gz", hash = "sha256:5939cf55de24b92bda00345d4d0659d01b3c7dafb5055165c330bc7c568ba273"},
 ]
 atomicwrites = [
     {file = "atomicwrites-1.4.0-py2.py3-none-any.whl", hash = "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197"},
@@ -885,6 +897,10 @@ pbr = [
 placebo = [
     {file = "placebo-0.9.0.tar.gz", hash = "sha256:03157f8527bbc2965b71b88f4a139ef8038618b346787f20d63e3c5da541b047"},
 ]
+platformdirs = [
+    {file = "platformdirs-2.4.0-py3-none-any.whl", hash = "sha256:8868bbe3c3c80d42f20156f22e7131d2fb321f5bc86a2a345375c6481a67021d"},
+    {file = "platformdirs-2.4.0.tar.gz", hash = "sha256:367a5e80b3d04d2428ffa76d33f124cf11e8fff2acdaa9b43d545f5c7d661ef2"},
+]
 pluggy = [
     {file = "pluggy-0.13.1-py2.py3-none-any.whl", hash = "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"},
     {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
@@ -930,8 +946,8 @@ pyflakes = [
     {file = "pyflakes-2.3.1.tar.gz", hash = "sha256:f5bc8ecabc05bb9d291eb5203d6810b49040f6ff446a756326104746cc00c1db"},
 ]
 pylint = [
-    {file = "pylint-2.7.4-py3-none-any.whl", hash = "sha256:209d712ec870a0182df034ae19f347e725c1e615b2269519ab58a35b3fcbbe7a"},
-    {file = "pylint-2.7.4.tar.gz", hash = "sha256:bd38914c7731cdc518634a8d3c5585951302b6e2b6de60fbb3f7a0220e21eeee"},
+    {file = "pylint-2.12.0-py3-none-any.whl", hash = "sha256:ba00afcb1550bc217bbcb0eb76c10cb8335f7417a3323bdd980c29fb5b59f8d2"},
+    {file = "pylint-2.12.0.tar.gz", hash = "sha256:245c87e5da54c35b623c21b35debf87d93b18bf9e0229515cc172d0b83d627cd"},
 ]
 pyparsing = [
     {file = "pyparsing-2.4.7-py2.py3-none-any.whl", hash = "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"},
@@ -1071,9 +1087,8 @@ typed-ast = [
     {file = "typed_ast-1.4.1.tar.gz", hash = "sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b"},
 ]
 typing-extensions = [
-    {file = "typing_extensions-3.7.4.3-py2-none-any.whl", hash = "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"},
-    {file = "typing_extensions-3.7.4.3-py3-none-any.whl", hash = "sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918"},
-    {file = "typing_extensions-3.7.4.3.tar.gz", hash = "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c"},
+    {file = "typing_extensions-4.0.0-py3-none-any.whl", hash = "sha256:829704698b22e13ec9eaf959122315eabb370b0884400e9818334d8b677023d9"},
+    {file = "typing_extensions-4.0.0.tar.gz", hash = "sha256:2cdf80e4e04866a9b3689a51869016d36db0814d84b8d8a568d22781d45d27ed"},
 ]
 virtualenv = [
     {file = "virtualenv-20.2.2-py2.py3-none-any.whl", hash = "sha256:54b05fc737ea9c9ee9f8340f579e5da5b09fb64fd010ab5757eb90268616907c"},
diff --git a/pyproject.toml b/pyproject.toml
index 289b664..7088c67 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ flake8 = "^3.9.0"
 flake8-bandit = "^2.1.2"
 flake8-bugbear = "^21.4.3"
 placebo = "^0.9.0"
-pylint = "^2.7.4"
+pylint = "^2.12.0"
 pytest-black = "^0.3.12"
 pytest-cov = "^2.11.1"
 pytest-datadir = "^1.3.1"