diff --git a/poetry.lock b/poetry.lock
index 407ffff..d6905ef 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -109,27 +109,19 @@ ordered-set = "4.0.2"
 [package.extras]
 cli = ["click (==7.1.2)", "pyyaml (==5.3.1)", "toml (==0.10.2)", "clevercsv (==0.6.6)"]
 
-[[package]]
-name = "entrypoints"
-version = "0.3"
-description = "Discover and load entry points from installed packages."
-category = "dev"
-optional = false
-python-versions = ">=2.7"
-
 [[package]]
 name = "flake8"
-version = "3.7.9"
-description = "the modular source code checker: pep8, pyflakes and co"
+version = "3.8.4"
+description = "the modular source code checker: pep8 pyflakes and co"
 category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
 
 [package.dependencies]
-entrypoints = ">=0.3.0,<0.4.0"
+importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 mccabe = ">=0.6.0,<0.7.0"
-pycodestyle = ">=2.5.0,<2.6.0"
-pyflakes = ">=2.1.0,<2.2.0"
+pycodestyle = ">=2.6.0a1,<2.7.0"
+pyflakes = ">=2.2.0,<2.3.0"
 
 [[package]]
 name = "idna"
@@ -276,7 +268,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "pycodestyle"
-version = "2.5.0"
+version = "2.6.0"
 description = "Python style guide checker"
 category = "dev"
 optional = false
@@ -300,7 +292,7 @@ typing_extensions = ["typing-extensions (>=3.7.2)"]
 
 [[package]]
 name = "pyflakes"
-version = "2.1.1"
+version = "2.2.0"
 description = "passive checker of Python programs"
 category = "dev"
 optional = false
@@ -572,13 +564,9 @@ deepdiff = [
     {file = "deepdiff-5.2.1-py3-none-any.whl", hash = "sha256:5e2b90ebe9d371af493a893306546f69dc117e7a36596b97f8fe56869dd0c35d"},
     {file = "deepdiff-5.2.1.tar.gz", hash = "sha256:2e368943dc257f6fa93d9ce4537dbcd4fea65098208a0f49f675cf40132c1a89"},
 ]
-entrypoints = [
-    {file = "entrypoints-0.3-py2.py3-none-any.whl", hash = "sha256:589f874b313739ad35be6e0cd7efde2a4e9b6fea91edcc34e58ecbb8dbe56d19"},
-    {file = "entrypoints-0.3.tar.gz", hash = "sha256:c70dd71abe5a8c85e55e12c19bd91ccfeec11a6e99044204511f9ed547d48451"},
-]
 flake8 = [
-    {file = "flake8-3.7.9-py2.py3-none-any.whl", hash = "sha256:49356e766643ad15072a789a20915d3c91dc89fd313ccd71802303fd67e4deca"},
-    {file = "flake8-3.7.9.tar.gz", hash = "sha256:45681a117ecc81e870cbf1262835ae4af5e7a8b08e40b944a8a6e6b895914cfb"},
+    {file = "flake8-3.8.4-py2.py3-none-any.whl", hash = "sha256:749dbbd6bfd0cf1318af27bf97a14e28e5ff548ef8e5b1566ccfb25a11e7c839"},
+    {file = "flake8-3.8.4.tar.gz", hash = "sha256:aadae8761ec651813c24be05c6f7b4680857ef6afaae4651a4eccaef97ce6c3b"},
 ]
 idna = [
     {file = "idna-2.8-py2.py3-none-any.whl", hash = "sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c"},
@@ -674,8 +662,8 @@ py = [
     {file = "py-1.9.0.tar.gz", hash = "sha256:9ca6883ce56b4e8da7e79ac18787889fa5206c79dcc67fb065376cd2fe03f342"},
 ]
 pycodestyle = [
-    {file = "pycodestyle-2.5.0-py2.py3-none-any.whl", hash = "sha256:95a2219d12372f05704562a14ec30bc76b05a5b297b21a5dfe3f6fac3491ae56"},
-    {file = "pycodestyle-2.5.0.tar.gz", hash = "sha256:e40a936c9a450ad81df37f549d676d127b1b66000a6c500caa2b085bc0ca976c"},
+    {file = "pycodestyle-2.6.0-py2.py3-none-any.whl", hash = "sha256:2295e7b2f6b5bd100585ebcb1f616591b652db8a741695b3d8f5d28bdc934367"},
+    {file = "pycodestyle-2.6.0.tar.gz", hash = "sha256:c58a7d2815e0e8d7972bf1803331fb0152f867bd89adf8a01dfd55085434192e"},
 ]
 pydantic = [
     {file = "pydantic-1.6.1-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:418b84654b60e44c0cdd5384294b0e4bc1ebf42d6e873819424f3b78b8690614"},
@@ -697,8 +685,8 @@ pydantic = [
     {file = "pydantic-1.6.1.tar.gz", hash = "sha256:54122a8ed6b75fe1dd80797f8251ad2063ea348a03b77218d73ea9fe19bd4e73"},
 ]
 pyflakes = [
-    {file = "pyflakes-2.1.1-py2.py3-none-any.whl", hash = "sha256:17dbeb2e3f4d772725c777fabc446d5634d1038f234e77343108ce445ea69ce0"},
-    {file = "pyflakes-2.1.1.tar.gz", hash = "sha256:d976835886f8c5b31d47970ed689944a0262b5f3afa00a5a7b4dc81e5449f8a2"},
+    {file = "pyflakes-2.2.0-py2.py3-none-any.whl", hash = "sha256:0d94e0e05a19e57a99444b6ddcf9a6eb2e5c68d3ca1e98e90707af8152c90a92"},
+    {file = "pyflakes-2.2.0.tar.gz", hash = "sha256:35b2d75ee967ea93b55750aa9edbbf72813e06a66ba54438df2cfac9e3c27fc8"},
 ]
 pyparsing = [
     {file = "pyparsing-2.4.2-py2.py3-none-any.whl", hash = "sha256:d9338df12903bbf5d65a0e4e87c2161968b10d2e489652bb47001d82a9b028b4"},