diff --git a/ni_python_styleguide/_acknowledge_existing_errors/__init__.py b/ni_python_styleguide/_acknowledge_existing_errors/__init__.py
index 517b86f6..0703a413 100644
--- a/ni_python_styleguide/_acknowledge_existing_errors/__init__.py
+++ b/ni_python_styleguide/_acknowledge_existing_errors/__init__.py
@@ -8,6 +8,8 @@
     "BLK100",
 }
 
+DEFAULT_ENCODING = "UTF-8"
+
 
 class _InMultiLineStringChecker:
     def __init__(self, error_file):
@@ -27,7 +29,7 @@ def _count_multiline_string_endings_in_line(line):
         return line.count('"""'), line.count("'''")
 
     def _load_lines(self):
-        in_file = self._error_file.read_text().splitlines()
+        in_file = self._error_file.read_text(encoding=DEFAULT_ENCODING).splitlines()
         current_count = [0, 0]
         for line in in_file:
             type1, type2 = _InMultiLineStringChecker._count_multiline_string_endings_in_line(line)
@@ -73,7 +75,7 @@ def acknowledge_lint_errors(lint_errors):
 
     for bad_file, errors_in_file in lint_errors_by_file.items():
         path = pathlib.Path(bad_file)
-        lines = path.read_text().splitlines(keepends=True)
+        lines = path.read_text(encoding=DEFAULT_ENCODING).splitlines(keepends=True)
         # sometimes errors are reported on line 1 for empty files.
         # to make suppressions work for those cases, add an empty line.
         if len(lines) == 0:
@@ -110,4 +112,4 @@ def acknowledge_lint_errors(lint_errors):
                 explanation=error.explanation,
             )
 
-        path.write_text("".join(lines))
+        path.write_text("".join(lines), encoding=DEFAULT_ENCODING)
diff --git a/poetry.lock b/poetry.lock
index 0a5770ac..f2e89ee7 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,45 +1,45 @@
 [[package]]
-category = "main"
-description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
 name = "appdirs"
+version = "1.4.4"
+description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.4.4"
 
 [[package]]
-category = "dev"
-description = "Atomic file writes."
-marker = "sys_platform == \"win32\""
 name = "atomicwrites"
+version = "1.4.0"
+description = "Atomic file writes."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.4.0"
 
 [[package]]
-category = "dev"
-description = "Classes Without Boilerplate"
 name = "attrs"
+version = "21.2.0"
+description = "Classes Without Boilerplate"
+category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "20.3.0"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [package.extras]
-dev = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "furo", "sphinx", "pre-commit"]
-docs = ["furo", "sphinx", "zope.interface"]
-tests = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
-tests_no_zope = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six"]
+dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface", "furo", "sphinx", "sphinx-notfound-page", "pre-commit"]
+docs = ["furo", "sphinx", "zope.interface", "sphinx-notfound-page"]
+tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface"]
+tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins"]
 
 [[package]]
-category = "main"
-description = "The uncompromising code formatter."
 name = "black"
+version = "20.8b1"
+description = "The uncompromising code formatter."
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "20.8b1"
 
 [package.dependencies]
 appdirs = "*"
 click = ">=7.1.2"
+dataclasses = {version = ">=0.6", markers = "python_version < \"3.7\""}
 mypy-extensions = ">=0.4.3"
 pathspec = ">=0.6,<1"
 regex = ">=2020.1.8"
@@ -47,343 +47,328 @@ toml = ">=0.10.1"
 typed-ast = ">=1.4.0"
 typing-extensions = ">=3.7.4"
 
-[package.dependencies.dataclasses]
-python = "<3.7"
-version = ">=0.6"
-
 [package.extras]
 colorama = ["colorama (>=0.4.3)"]
 d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
 
 [[package]]
-category = "main"
-description = "Composable command line interface toolkit"
 name = "click"
+version = "7.1.2"
+description = "Composable command line interface toolkit"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "7.1.2"
 
 [[package]]
-category = "dev"
-description = "Cross-platform colored terminal text."
-marker = "sys_platform == \"win32\""
 name = "colorama"
+version = "0.4.4"
+description = "Cross-platform colored terminal text."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.4.4"
 
 [[package]]
-category = "main"
-description = "A backport of the dataclasses module for Python 3.6"
-marker = "python_version < \"3.7\""
 name = "dataclasses"
+version = "0.8"
+description = "A backport of the dataclasses module for Python 3.6"
+category = "main"
 optional = false
-python-versions = "*"
-version = "0.6"
+python-versions = ">=3.6, <3.7"
 
 [[package]]
-category = "main"
-description = "the modular source code checker: pep8 pyflakes and co"
 name = "flake8"
+version = "3.9.2"
+description = "the modular source code checker: pep8 pyflakes and co"
+category = "main"
 optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
-version = "3.8.4"
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 
 [package.dependencies]
+importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 mccabe = ">=0.6.0,<0.7.0"
-pycodestyle = ">=2.6.0a1,<2.7.0"
-pyflakes = ">=2.2.0,<2.3.0"
-
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = "*"
+pycodestyle = ">=2.7.0,<2.8.0"
+pyflakes = ">=2.3.0,<2.4.0"
 
 [[package]]
-category = "main"
-description = "flake8 plugin to call black as a code style validator"
 name = "flake8-black"
+version = "0.2.3"
+description = "flake8 plugin to call black as a code style validator"
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.2.1"
 
 [package.dependencies]
 black = "*"
 flake8 = ">=3.0.0"
+toml = "*"
 
 [[package]]
-category = "main"
-description = "Extension for flake8 which uses pydocstyle to check docstrings"
 name = "flake8-docstrings"
+version = "1.6.0"
+description = "Extension for flake8 which uses pydocstyle to check docstrings"
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.5.0"
 
 [package.dependencies]
 flake8 = ">=3"
 pydocstyle = ">=2.1"
 
 [[package]]
-category = "main"
-description = "Flake8 and pylama plugin that checks the ordering of import statements."
 name = "flake8-import-order"
+version = "0.18.1"
+description = "Flake8 and pylama plugin that checks the ordering of import statements."
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.18.1"
 
 [package.dependencies]
 pycodestyle = "*"
-setuptools = "*"
 
 [[package]]
-category = "main"
-description = "Polyfill package for Flake8 plugins"
 name = "flake8-polyfill"
+version = "1.0.2"
+description = "Polyfill package for Flake8 plugins"
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.0.2"
 
 [package.dependencies]
 flake8 = "*"
 
 [[package]]
-category = "main"
-description = "Read metadata from Python packages"
-marker = "python_version < \"3.8\""
 name = "importlib-metadata"
+version = "4.8.1"
+description = "Read metadata from Python packages"
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "3.4.0"
 
 [package.dependencies]
+typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"
 
-[package.dependencies.typing-extensions]
-python = "<3.8"
-version = ">=3.6.4"
-
 [package.extras]
 docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=3.5,<3.7.3 || >3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "pytest-enabler", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
+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]]
-category = "dev"
-description = "iniconfig: brain-dead simple config-ini parsing"
 name = "iniconfig"
+version = "1.1.1"
+description = "iniconfig: brain-dead simple config-ini parsing"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.1.1"
 
 [[package]]
-category = "main"
-description = "McCabe checker, plugin for flake8"
 name = "mccabe"
+version = "0.6.1"
+description = "McCabe checker, plugin for flake8"
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.6.1"
 
 [[package]]
-category = "main"
-description = "Experimental type system extensions for programs checked with the mypy typechecker."
 name = "mypy-extensions"
+version = "0.4.3"
+description = "Experimental type system extensions for programs checked with the mypy typechecker."
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.4.3"
 
 [[package]]
-category = "dev"
-description = "Core utilities for Python packages"
 name = "packaging"
+version = "21.0"
+description = "Core utilities for Python packages"
+category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "20.9"
+python-versions = ">=3.6"
 
 [package.dependencies]
 pyparsing = ">=2.0.2"
 
 [[package]]
-category = "main"
-description = "Utility library for gitignore style pattern matching of file paths."
 name = "pathspec"
+version = "0.9.0"
+description = "Utility library for gitignore style pattern matching of file paths."
+category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.8.1"
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 
 [[package]]
-category = "main"
-description = "Check PEP-8 naming conventions, plugin for flake8"
 name = "pep8-naming"
+version = "0.11.1"
+description = "Check PEP-8 naming conventions, plugin for flake8"
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.11.1"
 
 [package.dependencies]
 flake8-polyfill = ">=1.0.2,<2"
 
 [[package]]
-category = "dev"
-description = "plugin and hook calling mechanisms for python"
 name = "pluggy"
+version = "1.0.0"
+description = "plugin and hook calling mechanisms for python"
+category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.13.1"
+python-versions = ">=3.6"
 
 [package.dependencies]
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
+importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 
 [package.extras]
 dev = ["pre-commit", "tox"]
+testing = ["pytest", "pytest-benchmark"]
 
 [[package]]
-category = "dev"
-description = "library with cross-python path, ini-parsing, io, code, log facilities"
 name = "py"
+version = "1.10.0"
+description = "library with cross-python path, ini-parsing, io, code, log facilities"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.10.0"
 
 [[package]]
-category = "main"
-description = "Python style guide checker"
 name = "pycodestyle"
+version = "2.7.0"
+description = "Python style guide checker"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.6.0"
 
 [[package]]
-category = "main"
-description = "Python docstring style checker"
 name = "pydocstyle"
+version = "6.1.1"
+description = "Python docstring style checker"
+category = "main"
 optional = false
-python-versions = ">=3.5"
-version = "5.1.1"
+python-versions = ">=3.6"
 
 [package.dependencies]
 snowballstemmer = "*"
 
+[package.extras]
+toml = ["toml"]
+
 [[package]]
-category = "main"
-description = "passive checker of Python programs"
 name = "pyflakes"
+version = "2.3.1"
+description = "passive checker of Python programs"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.2.0"
 
 [[package]]
-category = "dev"
-description = "Python parsing module"
 name = "pyparsing"
+version = "2.4.7"
+description = "Python parsing module"
+category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "2.4.7"
 
 [[package]]
-category = "dev"
-description = "pytest: simple powerful testing with Python"
 name = "pytest"
+version = "6.2.5"
+description = "pytest: simple powerful testing with Python"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
-version = "6.2.2"
 
 [package.dependencies]
-atomicwrites = ">=1.0"
+atomicwrites = {version = ">=1.0", markers = "sys_platform == \"win32\""}
 attrs = ">=19.2.0"
-colorama = "*"
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 iniconfig = "*"
 packaging = "*"
-pluggy = ">=0.12,<1.0.0a1"
+pluggy = ">=0.12,<2.0"
 py = ">=1.8.2"
 toml = "*"
 
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
-
 [package.extras]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
 
 [[package]]
-category = "dev"
-description = "Py.test plugin for Click"
 name = "pytest-click"
+version = "1.0.2"
+description = "Py.test plugin for Click"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.0.2"
 
 [package.dependencies]
 click = ">=6.0"
 pytest = ">=5.0"
 
 [[package]]
-category = "dev"
-description = "A plugin to enable snapshot testing with pytest."
 name = "pytest-snapshot"
+version = "0.7.0"
+description = "A plugin for snapshot testing with pytest."
+category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.4.2"
+python-versions = ">=3.5"
 
 [package.dependencies]
-packaging = "*"
 pytest = ">=3.0.0"
 
 [[package]]
-category = "main"
-description = "Alternative regular expression module, to replace re."
 name = "regex"
+version = "2021.10.8"
+description = "Alternative regular expression module, to replace re."
+category = "main"
 optional = false
 python-versions = "*"
-version = "2020.11.13"
 
 [[package]]
-category = "main"
-description = "This package provides 29 stemmers for 28 languages generated from Snowball algorithms."
 name = "snowballstemmer"
+version = "2.1.0"
+description = "This package provides 29 stemmers for 28 languages generated from Snowball algorithms."
+category = "main"
 optional = false
 python-versions = "*"
-version = "2.1.0"
 
 [[package]]
-category = "main"
-description = "Python Library for Tom's Obvious, Minimal Language"
 name = "toml"
+version = "0.10.2"
+description = "Python Library for Tom's Obvious, Minimal Language"
+category = "main"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "0.10.2"
 
 [[package]]
-category = "main"
-description = "a fork of Python 2 and 3 ast modules with type comment support"
 name = "typed-ast"
+version = "1.4.3"
+description = "a fork of Python 2 and 3 ast modules with type comment support"
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.4.2"
 
 [[package]]
-category = "main"
-description = "Backported and Experimental Type Hints for Python 3.5+"
 name = "typing-extensions"
+version = "3.10.0.2"
+description = "Backported and Experimental Type Hints for Python 3.5+"
+category = "main"
 optional = false
 python-versions = "*"
-version = "3.7.4.3"
 
 [[package]]
-category = "main"
-description = "Backport of pathlib-compatible object wrapper for zip files"
-marker = "python_version < \"3.8\""
 name = "zipp"
+version = "3.6.0"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "3.4.0"
 
 [package.extras]
-docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=3.5,<3.7.3 || >3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "jaraco.test (>=3.2.0)", "jaraco.itertools", "func-timeout", "pytest-black (>=0.3.7)", "pytest-mypy"]
+docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
+testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "jaraco.itertools", "func-timeout", "pytest-black (>=0.3.7)", "pytest-mypy"]
 
 [metadata]
-content-hash = "2500e56200ca209fa48780e65786f931763d0f3851fad32e6e932d58618fe9f9"
-lock-version = "1.0"
+lock-version = "1.1"
 python-versions = "^3.6"
+content-hash = "80103ee6056ebc8a8d1650659eaf3e02b614a014a365e6927d7fc89268f50704"
 
 [metadata.files]
 appdirs = [
@@ -395,11 +380,10 @@ atomicwrites = [
     {file = "atomicwrites-1.4.0.tar.gz", hash = "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"},
 ]
 attrs = [
-    {file = "attrs-20.3.0-py2.py3-none-any.whl", hash = "sha256:31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6"},
-    {file = "attrs-20.3.0.tar.gz", hash = "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"},
+    {file = "attrs-21.2.0-py2.py3-none-any.whl", hash = "sha256:149e90d6d8ac20db7a955ad60cf0e6881a3f20d37096140088356da6c716b0b1"},
+    {file = "attrs-21.2.0.tar.gz", hash = "sha256:ef6aaac3ca6cd92904cdd0d83f629a15f18053ec84e6432106f7a4d04ae4f5fb"},
 ]
 black = [
-    {file = "black-20.8b1-py3-none-any.whl", hash = "sha256:70b62ef1527c950db59062cda342ea224d772abdf6adc58b86a45421bab20a6b"},
     {file = "black-20.8b1.tar.gz", hash = "sha256:1c02557aa099101b9d21496f8a914e9ed2222ef70336404eeeac8edba836fbea"},
 ]
 click = [
@@ -411,19 +395,20 @@ colorama = [
     {file = "colorama-0.4.4.tar.gz", hash = "sha256:5941b2b48a20143d2267e95b1c2a7603ce057ee39fd88e7329b0c292aa16869b"},
 ]
 dataclasses = [
-    {file = "dataclasses-0.6-py3-none-any.whl", hash = "sha256:454a69d788c7fda44efd71e259be79577822f5e3f53f029a22d08004e951dc9f"},
-    {file = "dataclasses-0.6.tar.gz", hash = "sha256:6988bd2b895eef432d562370bb707d540f32f7360ab13da45340101bc2307d84"},
+    {file = "dataclasses-0.8-py3-none-any.whl", hash = "sha256:0201d89fa866f68c8ebd9d08ee6ff50c0b255f8ec63a71c16fda7af82bb887bf"},
+    {file = "dataclasses-0.8.tar.gz", hash = "sha256:8479067f342acf957dc82ec415d355ab5edb7e7646b90dc6e2fd1d96ad084c97"},
 ]
 flake8 = [
-    {file = "flake8-3.8.4-py2.py3-none-any.whl", hash = "sha256:749dbbd6bfd0cf1318af27bf97a14e28e5ff548ef8e5b1566ccfb25a11e7c839"},
-    {file = "flake8-3.8.4.tar.gz", hash = "sha256:aadae8761ec651813c24be05c6f7b4680857ef6afaae4651a4eccaef97ce6c3b"},
+    {file = "flake8-3.9.2-py2.py3-none-any.whl", hash = "sha256:bf8fd333346d844f616e8d47905ef3a3384edae6b4e9beb0c5101e25e3110907"},
+    {file = "flake8-3.9.2.tar.gz", hash = "sha256:07528381786f2a6237b061f6e96610a4167b226cb926e2aa2b6b1d78057c576b"},
 ]
 flake8-black = [
-    {file = "flake8-black-0.2.1.tar.gz", hash = "sha256:f26651bc10db786c03f4093414f7c9ea982ed8a244cec323c984feeffdf4c118"},
+    {file = "flake8-black-0.2.3.tar.gz", hash = "sha256:c199844bc1b559d91195ebe8620216f21ed67f2cc1ff6884294c91a0d2492684"},
+    {file = "flake8_black-0.2.3-py3-none-any.whl", hash = "sha256:cc080ba5b3773b69ba102b6617a00cc4ecbad8914109690cfda4d565ea435d96"},
 ]
 flake8-docstrings = [
-    {file = "flake8-docstrings-1.5.0.tar.gz", hash = "sha256:3d5a31c7ec6b7367ea6506a87ec293b94a0a46c0bce2bb4975b7f1d09b6f3717"},
-    {file = "flake8_docstrings-1.5.0-py2.py3-none-any.whl", hash = "sha256:a256ba91bc52307bef1de59e2a009c3cf61c3d0952dbe035d6ff7208940c2edc"},
+    {file = "flake8-docstrings-1.6.0.tar.gz", hash = "sha256:9fe7c6a306064af8e62a055c2f61e9eb1da55f84bb39caef2b84ce53708ac34b"},
+    {file = "flake8_docstrings-1.6.0-py2.py3-none-any.whl", hash = "sha256:99cac583d6c7e32dd28bbfbef120a7c0d1b6dde4adb5a9fd441c4227a6534bde"},
 ]
 flake8-import-order = [
     {file = "flake8-import-order-0.18.1.tar.gz", hash = "sha256:a28dc39545ea4606c1ac3c24e9d05c849c6e5444a50fb7e9cdd430fc94de6e92"},
@@ -434,8 +419,8 @@ flake8-polyfill = [
     {file = "flake8_polyfill-1.0.2-py2.py3-none-any.whl", hash = "sha256:12be6a34ee3ab795b19ca73505e7b55826d5f6ad7230d31b18e106400169b9e9"},
 ]
 importlib-metadata = [
-    {file = "importlib_metadata-3.4.0-py3-none-any.whl", hash = "sha256:ace61d5fc652dc280e7b6b4ff732a9c2d40db2c0f92bc6cb74e07b73d53a1771"},
-    {file = "importlib_metadata-3.4.0.tar.gz", hash = "sha256:fa5daa4477a7414ae34e95942e4dd07f62adf589143c875c133c1e53c4eff38d"},
+    {file = "importlib_metadata-4.8.1-py3-none-any.whl", hash = "sha256:b618b6d2d5ffa2f16add5697cf57a46c76a56229b0ed1c438322e4e95645bd15"},
+    {file = "importlib_metadata-4.8.1.tar.gz", hash = "sha256:f284b3e11256ad1e5d03ab86bb2ccd6f5339688ff17a4d797a0fe7df326f23b1"},
 ]
 iniconfig = [
     {file = "iniconfig-1.1.1-py2.py3-none-any.whl", hash = "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3"},
@@ -450,95 +435,101 @@ mypy-extensions = [
     {file = "mypy_extensions-0.4.3.tar.gz", hash = "sha256:2d82818f5bb3e369420cb3c4060a7970edba416647068eb4c5343488a6c604a8"},
 ]
 packaging = [
-    {file = "packaging-20.9-py2.py3-none-any.whl", hash = "sha256:67714da7f7bc052e064859c05c595155bd1ee9f69f76557e21f051443c20947a"},
-    {file = "packaging-20.9.tar.gz", hash = "sha256:5b327ac1320dc863dca72f4514ecc086f31186744b84a230374cc1fd776feae5"},
+    {file = "packaging-21.0-py3-none-any.whl", hash = "sha256:c86254f9220d55e31cc94d69bade760f0847da8000def4dfe1c6b872fd14ff14"},
+    {file = "packaging-21.0.tar.gz", hash = "sha256:7dc96269f53a4ccec5c0670940a4281106dd0bb343f47b7471f779df49c2fbe7"},
 ]
 pathspec = [
-    {file = "pathspec-0.8.1-py2.py3-none-any.whl", hash = "sha256:aa0cb481c4041bf52ffa7b0d8fa6cd3e88a2ca4879c533c9153882ee2556790d"},
-    {file = "pathspec-0.8.1.tar.gz", hash = "sha256:86379d6b86d75816baba717e64b1a3a3469deb93bb76d613c9ce79edc5cb68fd"},
+    {file = "pathspec-0.9.0-py2.py3-none-any.whl", hash = "sha256:7d15c4ddb0b5c802d161efc417ec1a2558ea2653c2e8ad9c19098201dc1c993a"},
+    {file = "pathspec-0.9.0.tar.gz", hash = "sha256:e564499435a2673d586f6b2130bb5b95f04a3ba06f81b8f895b651a3c76aabb1"},
 ]
 pep8-naming = [
     {file = "pep8-naming-0.11.1.tar.gz", hash = "sha256:a1dd47dd243adfe8a83616e27cf03164960b507530f155db94e10b36a6cd6724"},
     {file = "pep8_naming-0.11.1-py2.py3-none-any.whl", hash = "sha256:f43bfe3eea7e0d73e8b5d07d6407ab47f2476ccaeff6937c84275cd30b016738"},
 ]
 pluggy = [
-    {file = "pluggy-0.13.1-py2.py3-none-any.whl", hash = "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"},
-    {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
+    {file = "pluggy-1.0.0-py2.py3-none-any.whl", hash = "sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3"},
+    {file = "pluggy-1.0.0.tar.gz", hash = "sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159"},
 ]
 py = [
     {file = "py-1.10.0-py2.py3-none-any.whl", hash = "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"},
     {file = "py-1.10.0.tar.gz", hash = "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3"},
 ]
 pycodestyle = [
-    {file = "pycodestyle-2.6.0-py2.py3-none-any.whl", hash = "sha256:2295e7b2f6b5bd100585ebcb1f616591b652db8a741695b3d8f5d28bdc934367"},
-    {file = "pycodestyle-2.6.0.tar.gz", hash = "sha256:c58a7d2815e0e8d7972bf1803331fb0152f867bd89adf8a01dfd55085434192e"},
+    {file = "pycodestyle-2.7.0-py2.py3-none-any.whl", hash = "sha256:514f76d918fcc0b55c6680472f0a37970994e07bbb80725808c17089be302068"},
+    {file = "pycodestyle-2.7.0.tar.gz", hash = "sha256:c389c1d06bf7904078ca03399a4816f974a1d590090fecea0c63ec26ebaf1cef"},
 ]
 pydocstyle = [
-    {file = "pydocstyle-5.1.1-py3-none-any.whl", hash = "sha256:aca749e190a01726a4fb472dd4ef23b5c9da7b9205c0a7857c06533de13fd678"},
-    {file = "pydocstyle-5.1.1.tar.gz", hash = "sha256:19b86fa8617ed916776a11cd8bc0197e5b9856d5433b777f51a3defe13075325"},
+    {file = "pydocstyle-6.1.1-py3-none-any.whl", hash = "sha256:6987826d6775056839940041beef5c08cc7e3d71d63149b48e36727f70144dc4"},
+    {file = "pydocstyle-6.1.1.tar.gz", hash = "sha256:1d41b7c459ba0ee6c345f2eb9ae827cab14a7533a88c5c6f7e94923f72df92dc"},
 ]
 pyflakes = [
-    {file = "pyflakes-2.2.0-py2.py3-none-any.whl", hash = "sha256:0d94e0e05a19e57a99444b6ddcf9a6eb2e5c68d3ca1e98e90707af8152c90a92"},
-    {file = "pyflakes-2.2.0.tar.gz", hash = "sha256:35b2d75ee967ea93b55750aa9edbbf72813e06a66ba54438df2cfac9e3c27fc8"},
+    {file = "pyflakes-2.3.1-py2.py3-none-any.whl", hash = "sha256:7893783d01b8a89811dd72d7dfd4d84ff098e5eed95cfa8905b22bbffe52efc3"},
+    {file = "pyflakes-2.3.1.tar.gz", hash = "sha256:f5bc8ecabc05bb9d291eb5203d6810b49040f6ff446a756326104746cc00c1db"},
 ]
 pyparsing = [
     {file = "pyparsing-2.4.7-py2.py3-none-any.whl", hash = "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"},
     {file = "pyparsing-2.4.7.tar.gz", hash = "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1"},
 ]
 pytest = [
-    {file = "pytest-6.2.2-py3-none-any.whl", hash = "sha256:b574b57423e818210672e07ca1fa90aaf194a4f63f3ab909a2c67ebb22913839"},
-    {file = "pytest-6.2.2.tar.gz", hash = "sha256:9d1edf9e7d0b84d72ea3dbcdfd22b35fb543a5e8f2a60092dd578936bf63d7f9"},
+    {file = "pytest-6.2.5-py3-none-any.whl", hash = "sha256:7310f8d27bc79ced999e760ca304d69f6ba6c6649c0b60fb0e04a4a77cacc134"},
+    {file = "pytest-6.2.5.tar.gz", hash = "sha256:131b36680866a76e6781d13f101efb86cf674ebb9762eb70d3082b6f29889e89"},
 ]
 pytest-click = [
     {file = "pytest_click-1.0.2-py3-none-any.whl", hash = "sha256:ac298e15a31d8892d9d063c3be82bb9877aaa11a4944e05e541ecc753258e474"},
     {file = "pytest_click-1.0.2.tar.gz", hash = "sha256:b40b8435adde7a0d931352036a3882b13cd424fce2ffd7be6c87665050259be5"},
 ]
 pytest-snapshot = [
-    {file = "pytest-snapshot-0.4.2.tar.gz", hash = "sha256:b1f8dab3a3acdf15bfb332df1838eab7ff2721b2453cde6a717c7a472f7363dc"},
-    {file = "pytest_snapshot-0.4.2-py3-none-any.whl", hash = "sha256:2698f76bfb7908806d7a8e783ce09f9203972d7be5c1ff5044c409f18e44f0d0"},
+    {file = "pytest-snapshot-0.7.0.tar.gz", hash = "sha256:427b5ab088b25a1c8b63ce99725040664c840ff1f5a3891252723cce972897f9"},
+    {file = "pytest_snapshot-0.7.0-py3-none-any.whl", hash = "sha256:8d6e77136eb25990b5d713876e4ed5ca45b3916ac719e0f8399ba42f65d280af"},
 ]
 regex = [
-    {file = "regex-2020.11.13-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:8b882a78c320478b12ff024e81dc7d43c1462aa4a3341c754ee65d857a521f85"},
-    {file = "regex-2020.11.13-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:a63f1a07932c9686d2d416fb295ec2c01ab246e89b4d58e5fa468089cab44b70"},
-    {file = "regex-2020.11.13-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:6e4b08c6f8daca7d8f07c8d24e4331ae7953333dbd09c648ed6ebd24db5a10ee"},
-    {file = "regex-2020.11.13-cp36-cp36m-manylinux2010_i686.whl", hash = "sha256:bba349276b126947b014e50ab3316c027cac1495992f10e5682dc677b3dfa0c5"},
-    {file = "regex-2020.11.13-cp36-cp36m-manylinux2010_x86_64.whl", hash = "sha256:56e01daca75eae420bce184edd8bb341c8eebb19dd3bce7266332258f9fb9dd7"},
-    {file = "regex-2020.11.13-cp36-cp36m-manylinux2014_aarch64.whl", hash = "sha256:6a8ce43923c518c24a2579fda49f093f1397dad5d18346211e46f134fc624e31"},
-    {file = "regex-2020.11.13-cp36-cp36m-manylinux2014_i686.whl", hash = "sha256:1ab79fcb02b930de09c76d024d279686ec5d532eb814fd0ed1e0051eb8bd2daa"},
-    {file = "regex-2020.11.13-cp36-cp36m-manylinux2014_x86_64.whl", hash = "sha256:9801c4c1d9ae6a70aeb2128e5b4b68c45d4f0af0d1535500884d644fa9b768c6"},
-    {file = "regex-2020.11.13-cp36-cp36m-win32.whl", hash = "sha256:49cae022fa13f09be91b2c880e58e14b6da5d10639ed45ca69b85faf039f7a4e"},
-    {file = "regex-2020.11.13-cp36-cp36m-win_amd64.whl", hash = "sha256:749078d1eb89484db5f34b4012092ad14b327944ee7f1c4f74d6279a6e4d1884"},
-    {file = "regex-2020.11.13-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:b2f4007bff007c96a173e24dcda236e5e83bde4358a557f9ccf5e014439eae4b"},
-    {file = "regex-2020.11.13-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:38c8fd190db64f513fe4e1baa59fed086ae71fa45083b6936b52d34df8f86a88"},
-    {file = "regex-2020.11.13-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:5862975b45d451b6db51c2e654990c1820523a5b07100fc6903e9c86575202a0"},
-    {file = "regex-2020.11.13-cp37-cp37m-manylinux2010_i686.whl", hash = "sha256:262c6825b309e6485ec2493ffc7e62a13cf13fb2a8b6d212f72bd53ad34118f1"},
-    {file = "regex-2020.11.13-cp37-cp37m-manylinux2010_x86_64.whl", hash = "sha256:bafb01b4688833e099d79e7efd23f99172f501a15c44f21ea2118681473fdba0"},
-    {file = "regex-2020.11.13-cp37-cp37m-manylinux2014_aarch64.whl", hash = "sha256:e32f5f3d1b1c663af7f9c4c1e72e6ffe9a78c03a31e149259f531e0fed826512"},
-    {file = "regex-2020.11.13-cp37-cp37m-manylinux2014_i686.whl", hash = "sha256:3bddc701bdd1efa0d5264d2649588cbfda549b2899dc8d50417e47a82e1387ba"},
-    {file = "regex-2020.11.13-cp37-cp37m-manylinux2014_x86_64.whl", hash = "sha256:02951b7dacb123d8ea6da44fe45ddd084aa6777d4b2454fa0da61d569c6fa538"},
-    {file = "regex-2020.11.13-cp37-cp37m-win32.whl", hash = "sha256:0d08e71e70c0237883d0bef12cad5145b84c3705e9c6a588b2a9c7080e5af2a4"},
-    {file = "regex-2020.11.13-cp37-cp37m-win_amd64.whl", hash = "sha256:1fa7ee9c2a0e30405e21031d07d7ba8617bc590d391adfc2b7f1e8b99f46f444"},
-    {file = "regex-2020.11.13-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:baf378ba6151f6e272824b86a774326f692bc2ef4cc5ce8d5bc76e38c813a55f"},
-    {file = "regex-2020.11.13-cp38-cp38-manylinux1_i686.whl", hash = "sha256:e3faaf10a0d1e8e23a9b51d1900b72e1635c2d5b0e1bea1c18022486a8e2e52d"},
-    {file = "regex-2020.11.13-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:2a11a3e90bd9901d70a5b31d7dd85114755a581a5da3fc996abfefa48aee78af"},
-    {file = "regex-2020.11.13-cp38-cp38-manylinux2010_i686.whl", hash = "sha256:d1ebb090a426db66dd80df8ca85adc4abfcbad8a7c2e9a5ec7513ede522e0a8f"},
-    {file = "regex-2020.11.13-cp38-cp38-manylinux2010_x86_64.whl", hash = "sha256:b2b1a5ddae3677d89b686e5c625fc5547c6e492bd755b520de5332773a8af06b"},
-    {file = "regex-2020.11.13-cp38-cp38-manylinux2014_aarch64.whl", hash = "sha256:2c99e97d388cd0a8d30f7c514d67887d8021541b875baf09791a3baad48bb4f8"},
-    {file = "regex-2020.11.13-cp38-cp38-manylinux2014_i686.whl", hash = "sha256:c084582d4215593f2f1d28b65d2a2f3aceff8342aa85afd7be23a9cad74a0de5"},
-    {file = "regex-2020.11.13-cp38-cp38-manylinux2014_x86_64.whl", hash = "sha256:a3d748383762e56337c39ab35c6ed4deb88df5326f97a38946ddd19028ecce6b"},
-    {file = "regex-2020.11.13-cp38-cp38-win32.whl", hash = "sha256:7913bd25f4ab274ba37bc97ad0e21c31004224ccb02765ad984eef43e04acc6c"},
-    {file = "regex-2020.11.13-cp38-cp38-win_amd64.whl", hash = "sha256:6c54ce4b5d61a7129bad5c5dc279e222afd00e721bf92f9ef09e4fae28755683"},
-    {file = "regex-2020.11.13-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:1862a9d9194fae76a7aaf0150d5f2a8ec1da89e8b55890b1786b8f88a0f619dc"},
-    {file = "regex-2020.11.13-cp39-cp39-manylinux1_i686.whl", hash = "sha256:4902e6aa086cbb224241adbc2f06235927d5cdacffb2425c73e6570e8d862364"},
-    {file = "regex-2020.11.13-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:7a25fcbeae08f96a754b45bdc050e1fb94b95cab046bf56b016c25e9ab127b3e"},
-    {file = "regex-2020.11.13-cp39-cp39-manylinux2010_i686.whl", hash = "sha256:d2d8ce12b7c12c87e41123997ebaf1a5767a5be3ec545f64675388970f415e2e"},
-    {file = "regex-2020.11.13-cp39-cp39-manylinux2010_x86_64.whl", hash = "sha256:f7d29a6fc4760300f86ae329e3b6ca28ea9c20823df123a2ea8693e967b29917"},
-    {file = "regex-2020.11.13-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:717881211f46de3ab130b58ec0908267961fadc06e44f974466d1887f865bd5b"},
-    {file = "regex-2020.11.13-cp39-cp39-manylinux2014_i686.whl", hash = "sha256:3128e30d83f2e70b0bed9b2a34e92707d0877e460b402faca908c6667092ada9"},
-    {file = "regex-2020.11.13-cp39-cp39-manylinux2014_x86_64.whl", hash = "sha256:8f6a2229e8ad946e36815f2a03386bb8353d4bde368fdf8ca5f0cb97264d3b5c"},
-    {file = "regex-2020.11.13-cp39-cp39-win32.whl", hash = "sha256:f8f295db00ef5f8bae530fc39af0b40486ca6068733fb860b42115052206466f"},
-    {file = "regex-2020.11.13-cp39-cp39-win_amd64.whl", hash = "sha256:a15f64ae3a027b64496a71ab1f722355e570c3fac5ba2801cafce846bf5af01d"},
-    {file = "regex-2020.11.13.tar.gz", hash = "sha256:83d6b356e116ca119db8e7c6fc2983289d87b27b3fac238cfe5dca529d884562"},
+    {file = "regex-2021.10.8-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:094a905e87a4171508c2a0e10217795f83c636ccc05ddf86e7272c26e14056ae"},
+    {file = "regex-2021.10.8-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:981c786293a3115bc14c103086ae54e5ee50ca57f4c02ce7cf1b60318d1e8072"},
+    {file = "regex-2021.10.8-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:b0f2f874c6a157c91708ac352470cb3bef8e8814f5325e3c5c7a0533064c6a24"},
+    {file = "regex-2021.10.8-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:51feefd58ac38eb91a21921b047da8644155e5678e9066af7bcb30ee0dca7361"},
+    {file = "regex-2021.10.8-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:ea8de658d7db5987b11097445f2b1f134400e2232cb40e614e5f7b6f5428710e"},
+    {file = "regex-2021.10.8-cp310-cp310-manylinux_2_5_i686.manylinux1_i686.manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:1ce02f420a7ec3b2480fe6746d756530f69769292eca363218c2291d0b116a01"},
+    {file = "regex-2021.10.8-cp310-cp310-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:39079ebf54156be6e6902f5c70c078f453350616cfe7bfd2dd15bdb3eac20ccc"},
+    {file = "regex-2021.10.8-cp310-cp310-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:ff24897f6b2001c38a805d53b6ae72267025878d35ea225aa24675fbff2dba7f"},
+    {file = "regex-2021.10.8-cp310-cp310-win32.whl", hash = "sha256:c6569ba7b948c3d61d27f04e2b08ebee24fec9ff8e9ea154d8d1e975b175bfa7"},
+    {file = "regex-2021.10.8-cp310-cp310-win_amd64.whl", hash = "sha256:45cb0f7ff782ef51bc79e227a87e4e8f24bc68192f8de4f18aae60b1d60bc152"},
+    {file = "regex-2021.10.8-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:fab3ab8aedfb443abb36729410403f0fe7f60ad860c19a979d47fb3eb98ef820"},
+    {file = "regex-2021.10.8-cp36-cp36m-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:74e55f8d66f1b41d44bc44c891bcf2c7fad252f8f323ee86fba99d71fd1ad5e3"},
+    {file = "regex-2021.10.8-cp36-cp36m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:3d52c5e089edbdb6083391faffbe70329b804652a53c2fdca3533e99ab0580d9"},
+    {file = "regex-2021.10.8-cp36-cp36m-manylinux_2_5_i686.manylinux1_i686.manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:1abbd95cbe9e2467cac65c77b6abd9223df717c7ae91a628502de67c73bf6838"},
+    {file = "regex-2021.10.8-cp36-cp36m-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:b9b5c215f3870aa9b011c00daeb7be7e1ae4ecd628e9beb6d7e6107e07d81287"},
+    {file = "regex-2021.10.8-cp36-cp36m-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:f540f153c4f5617bc4ba6433534f8916d96366a08797cbbe4132c37b70403e92"},
+    {file = "regex-2021.10.8-cp36-cp36m-win32.whl", hash = "sha256:1f51926db492440e66c89cd2be042f2396cf91e5b05383acd7372b8cb7da373f"},
+    {file = "regex-2021.10.8-cp36-cp36m-win_amd64.whl", hash = "sha256:5f55c4804797ef7381518e683249310f7f9646da271b71cb6b3552416c7894ee"},
+    {file = "regex-2021.10.8-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:fb2baff66b7d2267e07ef71e17d01283b55b3cc51a81b54cc385e721ae172ba4"},
+    {file = "regex-2021.10.8-cp37-cp37m-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:9e527ab1c4c7cf2643d93406c04e1d289a9d12966529381ce8163c4d2abe4faf"},
+    {file = "regex-2021.10.8-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:36c98b013273e9da5790ff6002ab326e3f81072b4616fd95f06c8fa733d2745f"},
+    {file = "regex-2021.10.8-cp37-cp37m-manylinux_2_5_i686.manylinux1_i686.manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:55ef044899706c10bc0aa052f2fc2e58551e2510694d6aae13f37c50f3f6ff61"},
+    {file = "regex-2021.10.8-cp37-cp37m-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:aa0ab3530a279a3b7f50f852f1bab41bc304f098350b03e30a3876b7dd89840e"},
+    {file = "regex-2021.10.8-cp37-cp37m-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:a37305eb3199d8f0d8125ec2fb143ba94ff6d6d92554c4b8d4a8435795a6eccd"},
+    {file = "regex-2021.10.8-cp37-cp37m-win32.whl", hash = "sha256:2efd47704bbb016136fe34dfb74c805b1ef5c7313aef3ce6dcb5ff844299f432"},
+    {file = "regex-2021.10.8-cp37-cp37m-win_amd64.whl", hash = "sha256:924079d5590979c0e961681507eb1773a142553564ccae18d36f1de7324e71ca"},
+    {file = "regex-2021.10.8-cp38-cp38-macosx_10_9_universal2.whl", hash = "sha256:19b8f6d23b2dc93e8e1e7e288d3010e58fafed323474cf7f27ab9451635136d9"},
+    {file = "regex-2021.10.8-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:b09d3904bf312d11308d9a2867427479d277365b1617e48ad09696fa7dfcdf59"},
+    {file = "regex-2021.10.8-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:951be934dc25d8779d92b530e922de44dda3c82a509cdb5d619f3a0b1491fafa"},
+    {file = "regex-2021.10.8-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:7f125fce0a0ae4fd5c3388d369d7a7d78f185f904c90dd235f7ecf8fe13fa741"},
+    {file = "regex-2021.10.8-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:5f199419a81c1016e0560c39773c12f0bd924c37715bffc64b97140d2c314354"},
+    {file = "regex-2021.10.8-cp38-cp38-manylinux_2_5_i686.manylinux1_i686.manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:09e1031e2059abd91177c302da392a7b6859ceda038be9e015b522a182c89e4f"},
+    {file = "regex-2021.10.8-cp38-cp38-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:9c070d5895ac6aeb665bd3cd79f673775caf8d33a0b569e98ac434617ecea57d"},
+    {file = "regex-2021.10.8-cp38-cp38-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:176796cb7f82a7098b0c436d6daac82f57b9101bb17b8e8119c36eecf06a60a3"},
+    {file = "regex-2021.10.8-cp38-cp38-win32.whl", hash = "sha256:5e5796d2f36d3c48875514c5cd9e4325a1ca172fc6c78b469faa8ddd3d770593"},
+    {file = "regex-2021.10.8-cp38-cp38-win_amd64.whl", hash = "sha256:e4204708fa116dd03436a337e8e84261bc8051d058221ec63535c9403a1582a1"},
+    {file = "regex-2021.10.8-cp39-cp39-macosx_10_9_universal2.whl", hash = "sha256:6dcf53d35850ce938b4f044a43b33015ebde292840cef3af2c8eb4c860730fff"},
+    {file = "regex-2021.10.8-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:b8b6ee6555b6fbae578f1468b3f685cdfe7940a65675611365a7ea1f8d724991"},
+    {file = "regex-2021.10.8-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:e2ec1c106d3f754444abf63b31e5c4f9b5d272272a491fa4320475aba9e8157c"},
+    {file = "regex-2021.10.8-cp39-cp39-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:973499dac63625a5ef9dfa4c791aa33a502ddb7615d992bdc89cf2cc2285daa3"},
+    {file = "regex-2021.10.8-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:88dc3c1acd3f0ecfde5f95c32fcb9beda709dbdf5012acdcf66acbc4794468eb"},
+    {file = "regex-2021.10.8-cp39-cp39-manylinux_2_5_i686.manylinux1_i686.manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:4786dae85c1f0624ac77cb3813ed99267c9adb72e59fdc7297e1cf4d6036d493"},
+    {file = "regex-2021.10.8-cp39-cp39-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:fe6ce4f3d3c48f9f402da1ceb571548133d3322003ce01b20d960a82251695d2"},
+    {file = "regex-2021.10.8-cp39-cp39-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:9e3e2cea8f1993f476a6833ef157f5d9e8c75a59a8d8b0395a9a6887a097243b"},
+    {file = "regex-2021.10.8-cp39-cp39-win32.whl", hash = "sha256:82cfb97a36b1a53de32b642482c6c46b6ce80803854445e19bc49993655ebf3b"},
+    {file = "regex-2021.10.8-cp39-cp39-win_amd64.whl", hash = "sha256:b04e512eb628ea82ed86eb31c0f7fc6842b46bf2601b66b1356a7008327f7700"},
+    {file = "regex-2021.10.8.tar.gz", hash = "sha256:26895d7c9bbda5c52b3635ce5991caa90fbb1ddfac9c9ff1c7ce505e2282fb2a"},
 ]
 snowballstemmer = [
     {file = "snowballstemmer-2.1.0-py2.py3-none-any.whl", hash = "sha256:b51b447bea85f9968c13b650126a888aabd4cb4463fca868ec596826325dedc2"},
@@ -549,43 +540,43 @@ toml = [
     {file = "toml-0.10.2.tar.gz", hash = "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"},
 ]
 typed-ast = [
-    {file = "typed_ast-1.4.2-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:7703620125e4fb79b64aa52427ec192822e9f45d37d4b6625ab37ef403e1df70"},
-    {file = "typed_ast-1.4.2-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:c9aadc4924d4b5799112837b226160428524a9a45f830e0d0f184b19e4090487"},
-    {file = "typed_ast-1.4.2-cp35-cp35m-manylinux2014_aarch64.whl", hash = "sha256:9ec45db0c766f196ae629e509f059ff05fc3148f9ffd28f3cfe75d4afb485412"},
-    {file = "typed_ast-1.4.2-cp35-cp35m-win32.whl", hash = "sha256:85f95aa97a35bdb2f2f7d10ec5bbdac0aeb9dafdaf88e17492da0504de2e6400"},
-    {file = "typed_ast-1.4.2-cp35-cp35m-win_amd64.whl", hash = "sha256:9044ef2df88d7f33692ae3f18d3be63dec69c4fb1b5a4a9ac950f9b4ba571606"},
-    {file = "typed_ast-1.4.2-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:c1c876fd795b36126f773db9cbb393f19808edd2637e00fd6caba0e25f2c7b64"},
-    {file = "typed_ast-1.4.2-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:5dcfc2e264bd8a1db8b11a892bd1647154ce03eeba94b461effe68790d8b8e07"},
-    {file = "typed_ast-1.4.2-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:8db0e856712f79c45956da0c9a40ca4246abc3485ae0d7ecc86a20f5e4c09abc"},
-    {file = "typed_ast-1.4.2-cp36-cp36m-manylinux2014_aarch64.whl", hash = "sha256:d003156bb6a59cda9050e983441b7fa2487f7800d76bdc065566b7d728b4581a"},
-    {file = "typed_ast-1.4.2-cp36-cp36m-win32.whl", hash = "sha256:4c790331247081ea7c632a76d5b2a265e6d325ecd3179d06e9cf8d46d90dd151"},
-    {file = "typed_ast-1.4.2-cp36-cp36m-win_amd64.whl", hash = "sha256:d175297e9533d8d37437abc14e8a83cbc68af93cc9c1c59c2c292ec59a0697a3"},
-    {file = "typed_ast-1.4.2-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:cf54cfa843f297991b7388c281cb3855d911137223c6b6d2dd82a47ae5125a41"},
-    {file = "typed_ast-1.4.2-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:b4fcdcfa302538f70929eb7b392f536a237cbe2ed9cba88e3bf5027b39f5f77f"},
-    {file = "typed_ast-1.4.2-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:987f15737aba2ab5f3928c617ccf1ce412e2e321c77ab16ca5a293e7bbffd581"},
-    {file = "typed_ast-1.4.2-cp37-cp37m-manylinux2014_aarch64.whl", hash = "sha256:37f48d46d733d57cc70fd5f30572d11ab8ed92da6e6b28e024e4a3edfb456e37"},
-    {file = "typed_ast-1.4.2-cp37-cp37m-win32.whl", hash = "sha256:36d829b31ab67d6fcb30e185ec996e1f72b892255a745d3a82138c97d21ed1cd"},
-    {file = "typed_ast-1.4.2-cp37-cp37m-win_amd64.whl", hash = "sha256:8368f83e93c7156ccd40e49a783a6a6850ca25b556c0fa0240ed0f659d2fe496"},
-    {file = "typed_ast-1.4.2-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:963c80b583b0661918718b095e02303d8078950b26cc00b5e5ea9ababe0de1fc"},
-    {file = "typed_ast-1.4.2-cp38-cp38-manylinux1_i686.whl", hash = "sha256:e683e409e5c45d5c9082dc1daf13f6374300806240719f95dc783d1fc942af10"},
-    {file = "typed_ast-1.4.2-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:84aa6223d71012c68d577c83f4e7db50d11d6b1399a9c779046d75e24bed74ea"},
-    {file = "typed_ast-1.4.2-cp38-cp38-manylinux2014_aarch64.whl", hash = "sha256:a38878a223bdd37c9709d07cd357bb79f4c760b29210e14ad0fb395294583787"},
-    {file = "typed_ast-1.4.2-cp38-cp38-win32.whl", hash = "sha256:a2c927c49f2029291fbabd673d51a2180038f8cd5a5b2f290f78c4516be48be2"},
-    {file = "typed_ast-1.4.2-cp38-cp38-win_amd64.whl", hash = "sha256:c0c74e5579af4b977c8b932f40a5464764b2f86681327410aa028a22d2f54937"},
-    {file = "typed_ast-1.4.2-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:07d49388d5bf7e863f7fa2f124b1b1d89d8aa0e2f7812faff0a5658c01c59aa1"},
-    {file = "typed_ast-1.4.2-cp39-cp39-manylinux1_i686.whl", hash = "sha256:240296b27397e4e37874abb1df2a608a92df85cf3e2a04d0d4d61055c8305ba6"},
-    {file = "typed_ast-1.4.2-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:d746a437cdbca200622385305aedd9aef68e8a645e385cc483bdc5e488f07166"},
-    {file = "typed_ast-1.4.2-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:14bf1522cdee369e8f5581238edac09150c765ec1cb33615855889cf33dcb92d"},
-    {file = "typed_ast-1.4.2-cp39-cp39-win32.whl", hash = "sha256:cc7b98bf58167b7f2db91a4327da24fb93368838eb84a44c472283778fc2446b"},
-    {file = "typed_ast-1.4.2-cp39-cp39-win_amd64.whl", hash = "sha256:7147e2a76c75f0f64c4319886e7639e490fee87c9d25cb1d4faef1d8cf83a440"},
-    {file = "typed_ast-1.4.2.tar.gz", hash = "sha256:9fc0b3cb5d1720e7141d103cf4819aea239f7d136acf9ee4a69b047b7986175a"},
+    {file = "typed_ast-1.4.3-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:2068531575a125b87a41802130fa7e29f26c09a2833fea68d9a40cf33902eba6"},
+    {file = "typed_ast-1.4.3-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:c907f561b1e83e93fad565bac5ba9c22d96a54e7ea0267c708bffe863cbe4075"},
+    {file = "typed_ast-1.4.3-cp35-cp35m-manylinux2014_aarch64.whl", hash = "sha256:1b3ead4a96c9101bef08f9f7d1217c096f31667617b58de957f690c92378b528"},
+    {file = "typed_ast-1.4.3-cp35-cp35m-win32.whl", hash = "sha256:dde816ca9dac1d9c01dd504ea5967821606f02e510438120091b84e852367428"},
+    {file = "typed_ast-1.4.3-cp35-cp35m-win_amd64.whl", hash = "sha256:777a26c84bea6cd934422ac2e3b78863a37017618b6e5c08f92ef69853e765d3"},
+    {file = "typed_ast-1.4.3-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:f8afcf15cc511ada719a88e013cec87c11aff7b91f019295eb4530f96fe5ef2f"},
+    {file = "typed_ast-1.4.3-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:52b1eb8c83f178ab787f3a4283f68258525f8d70f778a2f6dd54d3b5e5fb4341"},
+    {file = "typed_ast-1.4.3-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:01ae5f73431d21eead5015997ab41afa53aa1fbe252f9da060be5dad2c730ace"},
+    {file = "typed_ast-1.4.3-cp36-cp36m-manylinux2014_aarch64.whl", hash = "sha256:c190f0899e9f9f8b6b7863debfb739abcb21a5c054f911ca3596d12b8a4c4c7f"},
+    {file = "typed_ast-1.4.3-cp36-cp36m-win32.whl", hash = "sha256:398e44cd480f4d2b7ee8d98385ca104e35c81525dd98c519acff1b79bdaac363"},
+    {file = "typed_ast-1.4.3-cp36-cp36m-win_amd64.whl", hash = "sha256:bff6ad71c81b3bba8fa35f0f1921fb24ff4476235a6e94a26ada2e54370e6da7"},
+    {file = "typed_ast-1.4.3-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:0fb71b8c643187d7492c1f8352f2c15b4c4af3f6338f21681d3681b3dc31a266"},
+    {file = "typed_ast-1.4.3-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:760ad187b1041a154f0e4d0f6aae3e40fdb51d6de16e5c99aedadd9246450e9e"},
+    {file = "typed_ast-1.4.3-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:5feca99c17af94057417d744607b82dd0a664fd5e4ca98061480fd8b14b18d04"},
+    {file = "typed_ast-1.4.3-cp37-cp37m-manylinux2014_aarch64.whl", hash = "sha256:95431a26309a21874005845c21118c83991c63ea800dd44843e42a916aec5899"},
+    {file = "typed_ast-1.4.3-cp37-cp37m-win32.whl", hash = "sha256:aee0c1256be6c07bd3e1263ff920c325b59849dc95392a05f258bb9b259cf39c"},
+    {file = "typed_ast-1.4.3-cp37-cp37m-win_amd64.whl", hash = "sha256:9ad2c92ec681e02baf81fdfa056fe0d818645efa9af1f1cd5fd6f1bd2bdfd805"},
+    {file = "typed_ast-1.4.3-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:b36b4f3920103a25e1d5d024d155c504080959582b928e91cb608a65c3a49e1a"},
+    {file = "typed_ast-1.4.3-cp38-cp38-manylinux1_i686.whl", hash = "sha256:067a74454df670dcaa4e59349a2e5c81e567d8d65458d480a5b3dfecec08c5ff"},
+    {file = "typed_ast-1.4.3-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:7538e495704e2ccda9b234b82423a4038f324f3a10c43bc088a1636180f11a41"},
+    {file = "typed_ast-1.4.3-cp38-cp38-manylinux2014_aarch64.whl", hash = "sha256:af3d4a73793725138d6b334d9d247ce7e5f084d96284ed23f22ee626a7b88e39"},
+    {file = "typed_ast-1.4.3-cp38-cp38-win32.whl", hash = "sha256:f2362f3cb0f3172c42938946dbc5b7843c2a28aec307c49100c8b38764eb6927"},
+    {file = "typed_ast-1.4.3-cp38-cp38-win_amd64.whl", hash = "sha256:dd4a21253f42b8d2b48410cb31fe501d32f8b9fbeb1f55063ad102fe9c425e40"},
+    {file = "typed_ast-1.4.3-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:f328adcfebed9f11301eaedfa48e15bdece9b519fb27e6a8c01aa52a17ec31b3"},
+    {file = "typed_ast-1.4.3-cp39-cp39-manylinux1_i686.whl", hash = "sha256:2c726c276d09fc5c414693a2de063f521052d9ea7c240ce553316f70656c84d4"},
+    {file = "typed_ast-1.4.3-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:cae53c389825d3b46fb37538441f75d6aecc4174f615d048321b716df2757fb0"},
+    {file = "typed_ast-1.4.3-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:b9574c6f03f685070d859e75c7f9eeca02d6933273b5e69572e5ff9d5e3931c3"},
+    {file = "typed_ast-1.4.3-cp39-cp39-win32.whl", hash = "sha256:209596a4ec71d990d71d5e0d312ac935d86930e6eecff6ccc7007fe54d703808"},
+    {file = "typed_ast-1.4.3-cp39-cp39-win_amd64.whl", hash = "sha256:9c6d1a54552b5330bc657b7ef0eae25d00ba7ffe85d9ea8ae6540d2197a3788c"},
+    {file = "typed_ast-1.4.3.tar.gz", hash = "sha256:fb1bbeac803adea29cedd70781399c99138358c26d05fcbd23c13016b7f5ec65"},
 ]
 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-3.10.0.2-py2-none-any.whl", hash = "sha256:d8226d10bc02a29bcc81df19a26e56a9647f8b0a6d4a83924139f4a8b01f17b7"},
+    {file = "typing_extensions-3.10.0.2-py3-none-any.whl", hash = "sha256:f1d25edafde516b146ecd0613dabcc61409817af4766fbbcfb8d1ad4ec441a34"},
+    {file = "typing_extensions-3.10.0.2.tar.gz", hash = "sha256:49f75d16ff11f1cd258e1b988ccff82a3ca5570217d7ad8c5f48205dd99a677e"},
 ]
 zipp = [
-    {file = "zipp-3.4.0-py3-none-any.whl", hash = "sha256:102c24ef8f171fd729d46599845e95c7ab894a4cf45f5de11a44cc7444fb1108"},
-    {file = "zipp-3.4.0.tar.gz", hash = "sha256:ed5eee1974372595f9e416cc7bbeeb12335201d8081ca8a0743c954d4446e5cb"},
+    {file = "zipp-3.6.0-py3-none-any.whl", hash = "sha256:9fe5ea21568a0a70e50f273397638d39b03353731e6cbbb3fd8502a33fec40bc"},
+    {file = "zipp-3.6.0.tar.gz", hash = "sha256:71c644c5369f4a6e07636f0aa966270449561fcea2e3d6747b8d23efaa9d7832"},
 ]
diff --git a/pyproject.toml b/pyproject.toml
index 953bcc06..5ba48197 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ pep8-naming = "^0.11.1"
 pytest = "^6.0.1"
 pytest_click = "^1.0.2"
 black = "^20.8b1"
-pytest-snapshot = "^0.4.2"
+pytest-snapshot = ">=0.6.3"
 
 [tool.poetry.scripts]
 ni-python-styleguide = 'ni_python_styleguide._cli:main'
diff --git a/tests/test_cli/acknowledge_existing_errors_test_cases__snapshots/unicode_in_files/input.py b/tests/test_cli/acknowledge_existing_errors_test_cases__snapshots/unicode_in_files/input.py
new file mode 100644
index 00000000..ec53ea88
--- /dev/null
+++ b/tests/test_cli/acknowledge_existing_errors_test_cases__snapshots/unicode_in_files/input.py
@@ -0,0 +1,14 @@
+"""Unicode in file should not cause error (e.g., ©)."""
+
+
+class Foo:
+    """Example class with unicode consts."""
+
+    def __init__(self) -> None:
+        """Instantiate Foo class."""
+        self._problem_chars = "π”"
+
+    @property
+    def problem_chars(self):
+        """Return stored string with a unicode char."""
+        return self._problem_chars
diff --git a/tests/test_cli/acknowledge_existing_errors_test_cases__snapshots/unicode_in_files/output.py b/tests/test_cli/acknowledge_existing_errors_test_cases__snapshots/unicode_in_files/output.py
new file mode 100644
index 00000000..ec53ea88
--- /dev/null
+++ b/tests/test_cli/acknowledge_existing_errors_test_cases__snapshots/unicode_in_files/output.py
@@ -0,0 +1,14 @@
+"""Unicode in file should not cause error (e.g., ©)."""
+
+
+class Foo:
+    """Example class with unicode consts."""
+
+    def __init__(self) -> None:
+        """Instantiate Foo class."""
+        self._problem_chars = "π”"
+
+    @property
+    def problem_chars(self):
+        """Return stored string with a unicode char."""
+        return self._problem_chars
diff --git a/tests/test_cli/test_acknowledge_existing_errors.py b/tests/test_cli/test_acknowledge_existing_errors.py
index b472f4ee..62637ec2 100644
--- a/tests/test_cli/test_acknowledge_existing_errors.py
+++ b/tests/test_cli/test_acknowledge_existing_errors.py
@@ -68,7 +68,7 @@ def test_given_bad_input_produces_expected_output(test_dir, snapshot, tmp_path,
     output = styleguide_command(command="acknowledge-existing-violations")
 
     assert output.exit_code in (True, 0), f"Error in running:\n{output}"
-    result = test_file.read_text()
+    result = test_file.read_text(encoding="UTF-8")
     snapshot.snapshot_dir = test_dir
     snapshot.assert_match(result, "output.py")