diff --git a/poetry.lock b/poetry.lock
index d7fcfc3..0688531 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -16,17 +16,17 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "attrs"
-version = "21.2.0"
+version = "21.4.0"
 description = "Classes Without Boilerplate"
 category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [package.extras]
-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"]
+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", "cloudpickle"]
 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"]
+tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface", "cloudpickle"]
+tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "cloudpickle"]
 
 [[package]]
 name = "backports.entry-points-selectable"
@@ -173,14 +173,15 @@ pyflakes = ">=2.3.0,<2.4.0"
 
 [[package]]
 name = "flake8-annotations"
-version = "2.6.2"
+version = "2.8.0"
 description = "Flake8 Type Annotation Checks"
 category = "dev"
 optional = false
-python-versions = ">=3.6.1,<4.0.0"
+python-versions = ">=3.7,<4.0"
 
 [package.dependencies]
-flake8 = ">=3.7,<4.0"
+attrs = ">=21.4,<22.0"
+flake8 = ">=3.7"
 typed-ast = {version = ">=1.4,<2.0", markers = "python_version < \"3.8\""}
 
 [[package]]
@@ -765,7 +766,7 @@ test = []
 [metadata]
 lock-version = "1.1"
 python-versions = ">=3.7,<4.0"
-content-hash = "1b1b63432a53187d327ebbb3c382fc1da2c330d3665a4874d0b3b388f6278cbf"
+content-hash = "fa9914a5da87cc9cb414346fbdf8b32c141ba6c21665b5306c76989581faf740"
 
 [metadata.files]
 appdirs = [
@@ -777,8 +778,8 @@ atomicwrites = [
     {file = "atomicwrites-1.4.0.tar.gz", hash = "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"},
 ]
 attrs = [
-    {file = "attrs-21.2.0-py2.py3-none-any.whl", hash = "sha256:149e90d6d8ac20db7a955ad60cf0e6881a3f20d37096140088356da6c716b0b1"},
-    {file = "attrs-21.2.0.tar.gz", hash = "sha256:ef6aaac3ca6cd92904cdd0d83f629a15f18053ec84e6432106f7a4d04ae4f5fb"},
+    {file = "attrs-21.4.0-py2.py3-none-any.whl", hash = "sha256:2d27e3784d7a565d36ab851fe94887c5eccd6a463168875832a1be79c82828b4"},
+    {file = "attrs-21.4.0.tar.gz", hash = "sha256:626ba8234211db98e869df76230a137c4c40a12d72445c45d5f5b716f076e2fd"},
 ]
 "backports.entry-points-selectable" = [
     {file = "backports.entry_points_selectable-1.1.0-py2.py3-none-any.whl", hash = "sha256:a6d9a871cde5e15b4c4a53e3d43ba890cc6861ec1332c9c2428c92f977192acc"},
@@ -883,8 +884,8 @@ flake8 = [
     {file = "flake8-3.9.2.tar.gz", hash = "sha256:07528381786f2a6237b061f6e96610a4167b226cb926e2aa2b6b1d78057c576b"},
 ]
 flake8-annotations = [
-    {file = "flake8-annotations-2.6.2.tar.gz", hash = "sha256:0d6cd2e770b5095f09689c9d84cc054c51b929c41a68969ea1beb4b825cac515"},
-    {file = "flake8_annotations-2.6.2-py3-none-any.whl", hash = "sha256:d10c4638231f8a50c0a597c4efce42bd7b7d85df4f620a0ddaca526138936a4f"},
+    {file = "flake8-annotations-2.8.0.tar.gz", hash = "sha256:a2765c6043098aab0a3f519b871b33586c7fba7037686404b920cf8100cc1cdc"},
+    {file = "flake8_annotations-2.8.0-py3-none-any.whl", hash = "sha256:880f9bb0677b82655f9021112d64513e03caefd2e0d786ab4a59ddb5b262caa9"},
 ]
 flake8-bandit = [
     {file = "flake8_bandit-2.1.2.tar.gz", hash = "sha256:687fc8da2e4a239b206af2e54a90093572a60d0954f3054e23690739b0b0de3b"},
diff --git a/pyproject.toml b/pyproject.toml
index 2072909..00c0919 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ markdownify = "0.9.4"
 
 [tool.poetry.dev-dependencies]
 flake8 = "~=3.7"
-flake8-annotations = "~=2.0"
+flake8-annotations = "~=2.8"
 flake8-bandit = "~=2.1"
 flake8-docstrings = "~=1.5"
 flake8-isort = "~=4.0"