diff --git a/.github/workflows/setup.yml b/.github/workflows/setup.yml
index 3964dc9..515a8b2 100644
--- a/.github/workflows/setup.yml
+++ b/.github/workflows/setup.yml
@@ -88,8 +88,11 @@ jobs:
       with:
         path: dist
         merge-multiple: true
-    - run: uvx twine check dist/*.whl
+    - run: uvx twine check --strict dist/*
     - run: uvx abi3audit dist/*abi3*.whl
+    - run: uvx pydistcheck --inspect dist/*
+    - run: uvx check-wheel-contents dist/*.whl
+    - run: uvx check-manifest -v
 
   publish:
     if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags/v')
diff --git a/MANIFEST.in b/MANIFEST.in
index d7dc84c..6e3ce33 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,6 +1,8 @@
 include siphash/*.h
+include siphash/README.md
 include test_siphashc.py
 include LICENSE.md
+include SECURITY.md
 include README.rst
 include CHANGES.rst
 include pyproject.toml
diff --git a/pyproject.toml b/pyproject.toml
index 8e410bb..c0c6fb7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,6 +24,11 @@ classifiers = [
   "Operating System :: OS Independent",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
   "Topic :: Software Development :: Libraries :: Python Modules"
 ]
 description = "Python module (in c) for siphash-2-4"
@@ -49,10 +54,24 @@ Homepage = "https://github.com/WeblateOrg/siphashc"
 "Source Code" = "https://github.com/WeblateOrg/siphashc"
 Twitter = "https://twitter.com/WeblateOrg"
 
+[tool.check-manifest]
+ignore = [
+  "*.yaml",
+  "*.yml",
+  "benchmark.py",
+  ".editorconfig"
+]
+
+[tool.check-wheel-contents]
+ignore = ["W009", "W010"]
+
 [tool.cibuildwheel]
 test-command = "pytest {project}/test_siphashc.py {project}/README.rst"
 test-requires = "pytest"
 
+[tool.cibuildwheel.linux]
+repair-wheel-command = "auditwheel repair --strip -w {dest_dir} {wheel}"
+
 [tool.isort]
 profile = "black"