diff --git a/poetry.lock b/poetry.lock
index c7d3a07..3f89d0b 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -518,7 +518,7 @@ diagrams = ["jinja2", "railroad-diagrams"]
 
 [[package]]
 name = "pyproject-flake8"
-version = "0.0.1a2"
+version = "0.0.1a3"
 description = "pyproject-flake8 (`pflake8`), a monkey patching wrapper to connect flake8 with pyproject.toml configuration"
 category = "dev"
 optional = false
@@ -526,7 +526,7 @@ python-versions = "*"
 
 [package.dependencies]
 flake8 = "*"
-toml = "*"
+tomli = {version = "*", markers = "python_version < \"3.11.0a7\""}
 
 [[package]]
 name = "pytest"
@@ -937,7 +937,7 @@ testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.9"
-content-hash = "3808cfd883a99dde6e0521c29b88daa99b31ae26fc7802871d8e4da3c73544c4"
+content-hash = "39ae2976cf13f5c34193d496da035e6b8b3f5a3b51da44d658143f814d0bc9cd"
 
 [metadata.files]
 alabaster = [
@@ -1218,8 +1218,8 @@ pyparsing = [
     {file = "pyparsing-3.0.7.tar.gz", hash = "sha256:18ee9022775d270c55187733956460083db60b37d0d0fb357445f3094eed3eea"},
 ]
 pyproject-flake8 = [
-    {file = "pyproject-flake8-0.0.1a2.tar.gz", hash = "sha256:bdeca37f78ecd34bd64a49d3657d53d099f5445831071a31c46e1fe20cd61461"},
-    {file = "pyproject_flake8-0.0.1a2-py2.py3-none-any.whl", hash = "sha256:e61ed1dc088e9f9f8a7170967ac4ec135acfef3a59ab9738c7b58cc11f294a7e"},
+    {file = "pyproject-flake8-0.0.1a3.tar.gz", hash = "sha256:4e3e704c639e61d9ab75aadf44dbf31a07281035896ad7d725ed7f386fd79674"},
+    {file = "pyproject_flake8-0.0.1a3-py2.py3-none-any.whl", hash = "sha256:1f434780791df82e9ca2358f4c542a2b2fdd3a77e666a6ad3f60a6a1464da4e2"},
 ]
 pytest = [
     {file = "pytest-7.1.1-py3-none-any.whl", hash = "sha256:92f723789a8fdd7180b6b06483874feca4c48a5c76968e03bb3e7f806a1869ea"},
diff --git a/pyproject.toml b/pyproject.toml
index e29852a..f6eb347 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ single-source = ">=0.2,<0.4"
 
 [tool.poetry.dev-dependencies]
 black = "^21.10b0"
-pyproject-flake8 = "^0.0.1-alpha.2"
+pyproject-flake8 = "^0.0.1a3"
 mypy = "^0.910"
 isort = "^5.10.1"
 tox = "^3.24.4"