diff --git a/pyproject.toml b/pyproject.toml
index e2726bf..f85b6dc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,25 +1,27 @@
-
-[tool.poetry]
-name = "ddb_single"
-version = "0.4.7"
-description = "Python DynamoDB interface, specialized in single-table design."
-authors = ["medaka <36759068+medaka0213@users.noreply.github.com>"]
-license = "MIT"
-homepage = "https://medaka0213.github.io/DynamoDB-SingleTable/"
-repository = "https://github.com/medaka0213/DynamoDB-SingleTable"
-keywords = ["aws", "dynamodb", "serverless"]
-packages = [{ include = "ddb_single" }]
-
-[tool.poetry.dependencies]
-python = "^3.10"
-boto3 = "^1.34.79"
-
-[tool.poetry.dev-dependencies]
-
-[tool.poetry.group.dev.dependencies]
-sphinx = "^7.2.6"
-sphinx-rtd-theme = "^2.0.0"
-
-[build-system]
-requires = ["poetry-core>=1.0.0"]
-build-backend = "poetry.core.masonry.api"
+
+[tool.poetry]
+name = "ddb_single"
+version = "0.4.7"
+description = "Python DynamoDB interface, specialized in single-table design."
+authors = ["medaka <36759068+medaka0213@users.noreply.github.com>"]
+license = "MIT"
+homepage = "https://medaka0213.github.io/DynamoDB-SingleTable/"
+repository = "https://github.com/medaka0213/DynamoDB-SingleTable"
+keywords = ["aws", "dynamodb", "serverless"]
+packages = [{ include = "ddb_single" }]
+
+[tool.poetry.dependencies]
+python = "^3.10"
+boto3 = "^1.34.79"
+
+[tool.poetry.dev-dependencies]
+
+[tool.poetry.group.dev.dependencies]
+sphinx = "^7.2.6"
+sphinx-rtd-theme = "^2.0.0"
+pyproject-flake8 = "^6.1.0"
+pytest-cov = "^5.0.0"
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"