diff --git a/pyproject.toml b/pyproject.toml
index 877fbf8..b8af2b0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,8 +30,8 @@ dependencies = [
 dev = [
     "pytest>=7.0",
     "pytest-cov",
-    "flake8",
-    "mypy",
+    "ruff>=0.1.0",
+    "mypy>=1.0.0",
     "black",
     "isort",
 ]
@@ -57,7 +57,7 @@ profile = "black"
 line_length = 100
 
 [tool.mypy]
-python_version = "3.8"
+python_version = "3.9"
 warn_return_any = true
 warn_unused_configs = true
 ignore_missing_imports = true