diff --git a/poetry.lock b/poetry.lock
index ddc195d..57b7e51 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -95,25 +95,25 @@ stevedore = ">=1.20.0"
 
 [[package]]
 name = "black"
-version = "20.8b1"
+version = "21.7b0"
 description = "The uncompromising code formatter."
 category = "dev"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.6.2"
 
 [package.dependencies]
 appdirs = "*"
 click = ">=7.1.2"
 mypy-extensions = ">=0.4.3"
-pathspec = ">=0.6,<1"
+pathspec = ">=0.8.1,<1"
 regex = ">=2020.1.8"
-toml = ">=0.10.1"
-typed-ast = ">=1.4.0"
-typing-extensions = ">=3.7.4"
+tomli = ">=0.2.6,<2.0.0"
 
 [package.extras]
 colorama = ["colorama (>=0.4.3)"]
-d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
+d = ["aiohttp (>=3.6.0)", "aiohttp-cors (>=0.4.0)"]
+python2 = ["typed-ast (>=1.4.2)"]
+uvloop = ["uvloop (>=0.15.2)"]
 
 [[package]]
 name = "certifi"
@@ -926,6 +926,14 @@ category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
+[[package]]
+name = "tomli"
+version = "1.0.4"
+description = "A lil' TOML parser"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
 [[package]]
 name = "tornado"
 version = "6.1"
@@ -1016,7 +1024,7 @@ python-versions = "*"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "7db1e36f205bc824519b5365791d7313e2959e9a5b406aaa6a8233108c733ce8"
+content-hash = "6c984ef3c606430322bc2a2a9e549dff7310f980382df160c284c596e7f5de3d"
 
 [metadata.files]
 appdirs = [
@@ -1055,7 +1063,8 @@ bandit = [
     {file = "bandit-1.7.0.tar.gz", hash = "sha256:8a4c7415254d75df8ff3c3b15cfe9042ecee628a1e40b44c15a98890fbfc2608"},
 ]
 black = [
-    {file = "black-20.8b1.tar.gz", hash = "sha256:1c02557aa099101b9d21496f8a914e9ed2222ef70336404eeeac8edba836fbea"},
+    {file = "black-21.7b0-py3-none-any.whl", hash = "sha256:1c7aa6ada8ee864db745b22790a32f94b2795c253a75d6d9b5e439ff10d23116"},
+    {file = "black-21.7b0.tar.gz", hash = "sha256:c8373c6491de9362e39271630b65b964607bc5c79c83783547d76c839b3aa219"},
 ]
 certifi = [
     {file = "certifi-2021.5.30-py2.py3-none-any.whl", hash = "sha256:50b1e4f8446b06f41be7dd6338db18e0990601dce795c2b1686458aa7e8fa7d8"},
@@ -1502,6 +1511,10 @@ toml = [
     {file = "toml-0.10.2-py2.py3-none-any.whl", hash = "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b"},
     {file = "toml-0.10.2.tar.gz", hash = "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"},
 ]
+tomli = [
+    {file = "tomli-1.0.4-py3-none-any.whl", hash = "sha256:0713b16ff91df8638a6a694e295c8159ab35ba93e3424a626dd5226d386057be"},
+    {file = "tomli-1.0.4.tar.gz", hash = "sha256:be670d0d8d7570fd0ea0113bd7bb1ba3ac6706b4de062cc4c952769355c9c268"},
+]
 tornado = [
     {file = "tornado-6.1-cp35-cp35m-macosx_10_9_x86_64.whl", hash = "sha256:d371e811d6b156d82aa5f9a4e08b58debf97c302a35714f6f45e35139c332e32"},
     {file = "tornado-6.1-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:0d321a39c36e5f2c4ff12b4ed58d41390460f798422c4504e09eb5678e09998c"},
diff --git a/pyproject.toml b/pyproject.toml
index f63bae8..d727b98 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,7 +48,7 @@ autoname = "^1.0.0"
 darglint = "^1.5.4"
 isort = "^5.5.4"
 pyupgrade = "^2.7.4"
-black = "^20.8b1"
+black = "^21.7b0"
 mypy = "^0.812"
 bandit = "^1.6.2"
 safety = "^1.9.0"