diff --git a/poetry.lock b/poetry.lock
index 87df28e..c261d77 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -63,13 +63,12 @@ category = "main"
 description = "An abstract syntax tree for Python with inference support."
 name = "astroid"
 optional = true
-python-versions = ">=3.5.*"
-version = "2.3.3"
+python-versions = "~=3.6"
+version = "2.5.6"
 
 [package.dependencies]
-lazy-object-proxy = ">=1.4.0,<1.5.0"
-six = ">=1.12,<2.0"
-wrapt = ">=1.11.0,<1.12.0"
+lazy-object-proxy = ">=1.4.0"
+wrapt = ">=1.11,<1.13"
 
 [package.dependencies.typed-ast]
 python = "<3.8"
@@ -373,14 +372,13 @@ category = "main"
 description = "A Python utility / library to sort Python imports."
 name = "isort"
 optional = true
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "4.3.21"
+python-versions = ">=3.6,<4.0"
+version = "5.8.0"
 
 [package.extras]
-pipfile = ["pipreqs", "requirementslib"]
-pyproject = ["toml"]
-requirements = ["pipreqs", "pip-api"]
-xdg_home = ["appdirs (>=1.4.0)"]
+colors = ["colorama (>=0.4.3,<0.5.0)"]
+pipfile_deprecated_finder = ["pipreqs", "requirementslib"]
+requirements_deprecated_finder = ["pipreqs", "pip-api"]
 
 [[package]]
 category = "main"
@@ -576,14 +574,15 @@ category = "main"
 description = "python code static checker"
 name = "pylint"
 optional = true
-python-versions = ">=3.5.*"
-version = "2.4.4"
+python-versions = "~=3.6"
+version = "2.8.1"
 
 [package.dependencies]
-astroid = ">=2.3.0,<2.4"
+astroid = ">=2.5.6,<2.7"
 colorama = "*"
-isort = ">=4.2.5,<5"
+isort = ">=4.2.5,<6"
 mccabe = ">=0.6,<0.7"
+toml = ">=0.7.1"
 
 [[package]]
 category = "main"
@@ -996,7 +995,7 @@ repl = ["bpython"]
 test = ["pytest", "PyHamcrest", "loguru"]
 
 [metadata]
-content-hash = "65f5ec35fefc0dcf6cacf0f8ef731ec15cd2a94b9cd2e9c8a9e8c309ed915ca4"
+content-hash = "03d6b5069ab680d3ce47c8b3f0ee3234983256ce16f3211555a9f2fee0f75563"
 python-versions = "^3.6"
 
 [metadata.files]
@@ -1025,8 +1024,8 @@ arrow = [
     {file = "aspy.refactor_imports-1.1.0.tar.gz", hash = "sha256:88418d9bd1a0d50b9d3836504469dce6f26ee8b2d78bd58b805d73dd8b381d55"},
 ]
 astroid = [
-    {file = "astroid-2.3.3-py3-none-any.whl", hash = "sha256:840947ebfa8b58f318d42301cf8c0a20fd794a33b61cc4638e28e9e61ba32f42"},
-    {file = "astroid-2.3.3.tar.gz", hash = "sha256:71ea07f44df9568a75d0f354c49143a4575d90645e9fead6dfb52c26a85ed13a"},
+    {file = "astroid-2.5.6-py3-none-any.whl", hash = "sha256:4db03ab5fc3340cf619dbc25e42c2cc3755154ce6009469766d7143d1fc2ee4e"},
+    {file = "astroid-2.5.6.tar.gz", hash = "sha256:8a398dfce302c13f14bab13e2b14fe385d32b73f4e4853b9bdfb64598baa1975"},
 ]
 atomicwrites = [
     {file = "atomicwrites-1.3.0-py2.py3-none-any.whl", hash = "sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4"},
@@ -1131,6 +1130,9 @@ greenlet = [
     {file = "greenlet-0.4.15-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:8041e2de00e745c0e05a502d6e6db310db7faa7c979b3a5877123548a4c0b214"},
     {file = "greenlet-0.4.15-cp37-cp37m-win32.whl", hash = "sha256:81fcd96a275209ef117e9ec91f75c731fa18dcfd9ffaa1c0adbdaa3616a86043"},
     {file = "greenlet-0.4.15-cp37-cp37m-win_amd64.whl", hash = "sha256:37c9ba82bd82eb6a23c2e5acc03055c0e45697253b2393c9a50cef76a3985304"},
+    {file = "greenlet-0.4.15-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:e538b8dae561080b542b0f5af64d47ef859f22517f7eca617bb314e0e03fd7ef"},
+    {file = "greenlet-0.4.15-cp38-cp38-win32.whl", hash = "sha256:51155342eb4d6058a0ffcd98a798fe6ba21195517da97e15fca3db12ab201e6e"},
+    {file = "greenlet-0.4.15-cp38-cp38-win_amd64.whl", hash = "sha256:7457d685158522df483196b16ec648b28f8e847861adb01a55d41134e7734122"},
     {file = "greenlet-0.4.15.tar.gz", hash = "sha256:9416443e219356e3c31f1f918a91badf2e37acf297e2fa13d24d1cc2380f8fbc"},
 ]
 idna = [
@@ -1160,8 +1162,8 @@ importlib-metadata = [
     {file = "importlib_metadata-1.6.0.tar.gz", hash = "sha256:34513a8a0c4962bc66d35b359558fd8a5e10cd472d37aec5f66858addef32c1e"},
 ]
 isort = [
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-    {file = "isort-4.3.21.tar.gz", hash = "sha256:54da7e92468955c4fceacd0c86bd0ec997b0e1ee80d97f67c35a78b719dccab1"},
+    {file = "isort-5.8.0-py3-none-any.whl", hash = "sha256:2bb1680aad211e3c9944dbce1d4ba09a989f04e238296c87fe2139faa26d655d"},
+    {file = "isort-5.8.0.tar.gz", hash = "sha256:0a943902919f65c5684ac4e0154b1ad4fac6dcaa5d9f3426b732f1c8b5419be6"},
 ]
 jinja2 = [
     {file = "Jinja2-2.11.2-py2.py3-none-any.whl", hash = "sha256:f0a4641d3cf955324a89c04f3d94663aa4d638abe8f733ecd3582848e1c37035"},
@@ -1221,20 +1223,39 @@ markupsafe = [
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     {file = "MarkupSafe-1.1.1-cp35-cp35m-win_amd64.whl", hash = "sha256:9add70b36c5666a2ed02b43b335fe19002ee5235efd4b8a89bfcf9005bebac0d"},
     {file = "MarkupSafe-1.1.1-cp36-cp36m-macosx_10_6_intel.whl", hash = "sha256:24982cc2533820871eba85ba648cd53d8623687ff11cbb805be4ff7b4c971aff"},
+    {file = "MarkupSafe-1.1.1-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:d53bc011414228441014aa71dbec320c66468c1030aae3a6e29778a3382d96e5"},
     {file = "MarkupSafe-1.1.1-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:00bc623926325b26bb9605ae9eae8a215691f33cae5df11ca5424f06f2d1f473"},
     {file = "MarkupSafe-1.1.1-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:717ba8fe3ae9cc0006d7c451f0bb265ee07739daf76355d06366154ee68d221e"},
+    {file = "MarkupSafe-1.1.1-cp36-cp36m-manylinux2010_i686.whl", hash = "sha256:3b8a6499709d29c2e2399569d96719a1b21dcd94410a586a18526b143ec8470f"},
+    {file = "MarkupSafe-1.1.1-cp36-cp36m-manylinux2010_x86_64.whl", hash = "sha256:84dee80c15f1b560d55bcfe6d47b27d070b4681c699c572af2e3c7cc90a3b8e0"},
+    {file = "MarkupSafe-1.1.1-cp36-cp36m-manylinux2014_aarch64.whl", hash = "sha256:b1dba4527182c95a0db8b6060cc98ac49b9e2f5e64320e2b56e47cb2831978c7"},
     {file = "MarkupSafe-1.1.1-cp36-cp36m-win32.whl", hash = "sha256:535f6fc4d397c1563d08b88e485c3496cf5784e927af890fb3c3aac7f933ec66"},
     {file = "MarkupSafe-1.1.1-cp36-cp36m-win_amd64.whl", hash = "sha256:b1282f8c00509d99fef04d8ba936b156d419be841854fe901d8ae224c59f0be5"},
     {file = "MarkupSafe-1.1.1-cp37-cp37m-macosx_10_6_intel.whl", hash = "sha256:8defac2f2ccd6805ebf65f5eeb132adcf2ab57aa11fdf4c0dd5169a004710e7d"},
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     {file = "MarkupSafe-1.1.1-cp38-cp38-manylinux1_i686.whl", hash = "sha256:cdb132fc825c38e1aeec2c8aa9338310d29d337bebbd7baa06889d09a60a1fa2"},
     {file = "MarkupSafe-1.1.1-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:13d3144e1e340870b25e7b10b98d779608c02016d5184cfb9927a9f10c689f42"},
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+    {file = "MarkupSafe-1.1.1-cp38-cp38-manylinux2010_x86_64.whl", hash = "sha256:d9be0ba6c527163cbed5e0857c451fcd092ce83947944d6c14bc95441203f032"},
+    {file = "MarkupSafe-1.1.1-cp38-cp38-manylinux2014_aarch64.whl", hash = "sha256:caabedc8323f1e93231b52fc32bdcde6db817623d33e100708d9a68e1f53b26b"},
     {file = "MarkupSafe-1.1.1-cp38-cp38-win32.whl", hash = "sha256:596510de112c685489095da617b5bcbbac7dd6384aeebeda4df6025d0256a81b"},
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+    {file = "MarkupSafe-1.1.1-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:2beec1e0de6924ea551859edb9e7679da6e4870d32cb766240ce17e0a0ba2014"},
+    {file = "MarkupSafe-1.1.1-cp39-cp39-manylinux2010_i686.whl", hash = "sha256:7fed13866cf14bba33e7176717346713881f56d9d2bcebab207f7a036f41b850"},
+    {file = "MarkupSafe-1.1.1-cp39-cp39-manylinux2010_x86_64.whl", hash = "sha256:6f1e273a344928347c1290119b493a1f0303c52f5a5eae5f16d74f48c15d4a85"},
+    {file = "MarkupSafe-1.1.1-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:feb7b34d6325451ef96bc0e36e1a6c0c1c64bc1fbec4b854f4529e51887b1621"},
+    {file = "MarkupSafe-1.1.1-cp39-cp39-win32.whl", hash = "sha256:22c178a091fc6630d0d045bdb5992d2dfe14e3259760e713c490da5323866c39"},
+    {file = "MarkupSafe-1.1.1-cp39-cp39-win_amd64.whl", hash = "sha256:b7d644ddb4dbd407d31ffb699f1d140bc35478da613b441c582aeb7c43838dd8"},
     {file = "MarkupSafe-1.1.1.tar.gz", hash = "sha256:29872e92839765e546828bb7754a68c418d927cd064fd4708fab9fe9c8bb116b"},
 ]
 mccabe = [
@@ -1288,8 +1309,8 @@ pyhamcrest = [
     {file = "PyHamcrest-2.0.2.tar.gz", hash = "sha256:412e00137858f04bde0729913874a48485665f2d36fe9ee449f26be864af9316"},
 ]
 pylint = [
-    {file = "pylint-2.4.4-py3-none-any.whl", hash = "sha256:886e6afc935ea2590b462664b161ca9a5e40168ea99e5300935f6591ad467df4"},
-    {file = "pylint-2.4.4.tar.gz", hash = "sha256:3db5468ad013380e987410a8d6956226963aed94ecb5f9d3a28acca6d9ac36cd"},
+    {file = "pylint-2.8.1-py3-none-any.whl", hash = "sha256:4236b7284853b779a8add49aca287a5899245894995c5591d2b5839a32482330"},
+    {file = "pylint-2.8.1.tar.gz", hash = "sha256:ad1bff19c46bfc6d2aeba4de5f76570d253df4915d2043ba61dc6a96233c4bd6"},
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 pyparsing = [
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@@ -1325,6 +1346,8 @@ pyyaml = [
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     {file = "PyYAML-5.3.1-cp38-cp38-win32.whl", hash = "sha256:06a0d7ba600ce0b2d2fe2e78453a470b5a6e000a985dd4a4e54e436cc36b0e97"},
     {file = "PyYAML-5.3.1-cp38-cp38-win_amd64.whl", hash = "sha256:95f71d2af0ff4227885f7a6605c37fd53d3a106fcab511b8860ecca9fcf400ee"},
+    {file = "PyYAML-5.3.1-cp39-cp39-win32.whl", hash = "sha256:ad9c67312c84def58f3c04504727ca879cb0013b2517c85a9a253f0cb6380c0a"},
+    {file = "PyYAML-5.3.1-cp39-cp39-win_amd64.whl", hash = "sha256:6034f55dab5fea9e53f436aa68fa3ace2634918e8b5994d82f3621c04ff5ed2e"},
     {file = "PyYAML-5.3.1.tar.gz", hash = "sha256:b8eac752c5e14d3eca0e6dd9199cd627518cb5ec06add0de9d32baeee6fe645d"},
 ]
 regex = [
@@ -1351,6 +1374,7 @@ regex = [
     {file = "regex-2020.4.4.tar.gz", hash = "sha256:295badf61a51add2d428a46b8580309c520d8b26e769868b922750cf3ce67142"},
 ]
 requests = [
+    {file = "requests-2.23.0-py2.7.egg", hash = "sha256:5d2d0ffbb515f39417009a46c14256291061ac01ba8f875b90cad137de83beb4"},
     {file = "requests-2.23.0-py2.py3-none-any.whl", hash = "sha256:43999036bfa82904b6af1d99e4882b560e5e2c68e5c4b0aa03b655f3d7d73fee"},
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 ]
@@ -1438,19 +1462,28 @@ typed-ast = [
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 ]
 urllib3 = [
diff --git a/pyproject.toml b/pyproject.toml
index 8f3ec98..d9da1a7 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ flake8-bugbear = {version = "^19.8.0", optional = true}
 pylint = {version = "^2.3", optional = true}
 yapf = {version = "^0.27.0", optional = true}
 # Optional dependencies to be part of `format` extra
-isort = {version = "^4.3", optional = true}
+isort = {version = "^5.8", optional = true}
 seed-isort-config = {version = "^1.9.3", optional = true}
 black = {version = "stable", optional = true, allow-prereleases = true}
 # Optional dependencies to be part of `docs` extra