diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 251b9c1d..9c01fc4d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -35,15 +35,13 @@ jobs:
       # https://blog.jaraco.com/efficient-use-of-ci-resources/
       matrix:
         python:
-        - "3.8"
+        - "3.9"
         - "3.13"
         platform:
         - ubuntu-latest
         - macos-latest
         - windows-latest
         include:
-        - python: "3.9"
-          platform: ubuntu-latest
         - python: "3.10"
           platform: ubuntu-latest
         - python: "3.11"
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 8ec58e22..04870d16 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.5.6
+  rev: v0.7.1
   hooks:
   - id: ruff
     args: [--fix, --unsafe-fixes]
diff --git a/pyproject.toml b/pyproject.toml
index 2e5e40c4..ec5267fa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ classifiers = [
 	"Programming Language :: Python :: 3",
 	"Programming Language :: Python :: 3 :: Only",
 ]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 dependencies = [
 	"zipp>=3.20",
 	'typing-extensions>=3.6.4; python_version < "3.8"',
diff --git a/ruff.toml b/ruff.toml
index 922aa1f1..8b22940a 100644
--- a/ruff.toml
+++ b/ruff.toml
@@ -1,3 +1,6 @@
+# include pyproject.toml for requires-python (workaround astral-sh/ruff#10299)
+include = "pyproject.toml"
+
 [lint]
 extend-select = [
 	"C901",