diff --git a/poetry.lock b/poetry.lock
index 685486b..2a015fe 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -89,7 +89,7 @@ stevedore = ">=1.20.0"
 
 [[package]]
 name = "black"
-version = "21.10b0"
+version = "21.11b0"
 description = "The uncompromising code formatter."
 category = "dev"
 optional = false
@@ -102,7 +102,7 @@ pathspec = ">=0.9.0,<1"
 platformdirs = ">=2"
 regex = ">=2020.1.8"
 tomli = ">=0.2.6,<2.0.0"
-typed-ast = {version = ">=1.4.2", markers = "python_version < \"3.8\""}
+typed-ast = {version = ">=1.4.2", markers = "python_version < \"3.8\" and implementation_name == \"cpython\""}
 typing-extensions = [
     {version = ">=3.10.0.0", markers = "python_version < \"3.10\""},
     {version = "!=3.10.0.1", markers = "python_version >= \"3.10\""},
@@ -1055,7 +1055,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pyt
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "55d0d168db7a3df9f73102bd809592939094568deb0f903c2addc05eaf94c6bc"
+content-hash = "297aa6fd721118f136de92effebf3c1c876c8648ba442f2aac5baea6accfdc4c"
 
 [metadata.files]
 alabaster = [
@@ -1091,8 +1091,8 @@ bandit = [
     {file = "bandit-1.7.0.tar.gz", hash = "sha256:8a4c7415254d75df8ff3c3b15cfe9042ecee628a1e40b44c15a98890fbfc2608"},
 ]
 black = [
-    {file = "black-21.10b0-py3-none-any.whl", hash = "sha256:6eb7448da9143ee65b856a5f3676b7dda98ad9abe0f87fce8c59291f15e82a5b"},
-    {file = "black-21.10b0.tar.gz", hash = "sha256:a9952229092e325fe5f3dae56d81f639b23f7131eb840781947e4b2886030f33"},
+    {file = "black-21.11b0-py3-none-any.whl", hash = "sha256:0b1f66cbfadcd332ceeaeecf6373d9991d451868d2e2219ad0ac1213fb701117"},
+    {file = "black-21.11b0.tar.gz", hash = "sha256:83f3852301c8dcb229e9c444dd79f573c8d31c7c2dad9bbaaa94c808630e32aa"},
 ]
 cached-property = [
     {file = "cached-property-1.5.2.tar.gz", hash = "sha256:9fa5755838eecbb2d234c3aa390bd80fbd3ac6b6869109bfc1b499f7bd89a130"},
diff --git a/pyproject.toml b/pyproject.toml
index d88588d..e627dec 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ python = "^3.7"
 django = ">=2.0"
 
 [tool.poetry.dev-dependencies]
-black = "^21.10b0"
+black = "^21.11b0"
 flake8 = "^4.0.1"
 flake8-bandit = "^2.1.2"
 flake8-bugbear = "^21.9.2"