diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ac19735..935c879 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,12 +12,11 @@ jobs:
     strategy:
       matrix:
         python:
-          - "3.7"
-          - "3.8"
           - "3.9"
           - "3.10"
           - "3.11"
           - "3.12"
+          - "3.13"
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/listgen.yml b/.github/workflows/listgen.yml
index 6a444ce..0c1bae0 100644
--- a/.github/workflows/listgen.yml
+++ b/.github/workflows/listgen.yml
@@ -108,6 +108,7 @@ jobs:
           - "3.10"
           - "3.11"
           - "3.12"
+          - "3.13"
 
     runs-on: ubuntu-latest
 
diff --git a/Makefile b/Makefile
index c1c13f6..e60821d 100644
--- a/Makefile
+++ b/Makefile
@@ -56,15 +56,15 @@ $(VENV)/pyvenv.cfg: pyproject.toml
 .PHONY: lint
 lint: $(VENV)/pyvenv.cfg
 	. $(VENV_BIN)/activate && \
-		black --check $(ALL_PY_SRCS) && \
+		ruff format --check $(ALL_PY_SRCS) && \
 		ruff check $(ALL_PY_SRCS) && \
 		mypy $(PY_MODULE)
 
 .PHONY: reformat
 reformat:
 	. $(VENV_BIN)/activate && \
-		ruff --fix $(ALL_PY_SRCS) && \
-		black $(ALL_PY_SRCS)
+		ruff check --fix $(ALL_PY_SRCS) && \
+		ruff format $(ALL_PY_SRCS)
 
 .PHONY: test tests
 test tests: $(VENV)/pyvenv.cfg
diff --git a/pyproject.toml b/pyproject.toml
index 6021a19..2a019c2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ classifiers = [
     "Topic :: Software Development :: Libraries :: Python Modules",
 ]
 dependencies = []
-requires-python = ">=3.7"
+requires-python = ">=3.9"
 
 [project.urls]
 Homepage = "https://pypi.org/project/stdlib-list/"
@@ -34,7 +34,7 @@ Documentation = "https://pypi.github.io/stdlib-list/"
 
 [project.optional-dependencies]
 test = ["pytest", "pytest-cov", "coverage[toml]"]
-lint = ["black", "mypy", "ruff"]
+lint = ["mypy", "ruff"]
 doc = ["sphinx", "furo"]
 dev = ["build", "stdlib-list[test,lint,doc]"]
 # CI only: used for list generation for Python versions < 3.10.
@@ -57,10 +57,6 @@ warn_unreachable = true
 warn_unused_configs = true
 warn_unused_ignores = true
 
-[tool.black]
-line-length = 100
-
 [tool.ruff]
 lint.select = ["E", "F", "I", "W", "UP"]
-target-version = "py37"
 line-length = 100