diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e381121a7..9a59e5235 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,6 @@ jobs:
           - testenv: vulture
           - testenv: misc
           - testenv: pyroma
-          - testenv: check-manifest
           - testenv: eslint
           - testenv: shellcheck
             args: "-f gcc"  # For problem matchers
diff --git a/doc/contributing.asciidoc b/doc/contributing.asciidoc
index 75d663a8d..39aa575c4 100644
--- a/doc/contributing.asciidoc
+++ b/doc/contributing.asciidoc
@@ -121,8 +121,6 @@ Currently, the following tox environments are available:
 * `pyroma`: Check packaging practices with
   https://pypi.python.org/pypi/pyroma/[pyroma].
 * `eslint`: Run https://eslint.org/[ESLint] javascript checker.
-* `check-manifest`: Check MANIFEST.in completeness with
-  https://github.com/mgedmin/check-manifest[check-manifest].
 * `mkvenv`: Bootstrap a virtualenv for testing.
 * `misc`: Run `scripts/misc_checks.py` to check for:
     - untracked git files
diff --git a/misc/requirements/requirements-check-manifest.txt b/misc/requirements/requirements-check-manifest.txt
deleted file mode 100644
index e27f7bc1c..000000000
--- a/misc/requirements/requirements-check-manifest.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-# This file is automatically generated by scripts/dev/recompile_requirements.py
-
-build==1.2.2.post1
-check-manifest==0.50
-importlib_metadata==8.7.0
-packaging==25.0
-pyproject_hooks==1.2.0
-tomli==2.2.1
-zipp==3.23.0
diff --git a/misc/requirements/requirements-check-manifest.txt-raw b/misc/requirements/requirements-check-manifest.txt-raw
deleted file mode 100644
index dcc0efe13..000000000
--- a/misc/requirements/requirements-check-manifest.txt-raw
+++ /dev/null
@@ -1 +0,0 @@
-check-manifest
diff --git a/misc/requirements/requirements-pyroma.txt b/misc/requirements/requirements-pyroma.txt
index f191c15a1..36dbb7760 100644
--- a/misc/requirements/requirements-pyroma.txt
+++ b/misc/requirements/requirements-pyroma.txt
@@ -3,6 +3,7 @@
 build==1.2.2.post1
 certifi==2025.6.15
 charset-normalizer==3.4.2
+check-manifest==0.50
 docutils==0.21.2
 idna==3.10
 importlib_metadata==8.7.0
diff --git a/misc/requirements/requirements-pyroma.txt-raw b/misc/requirements/requirements-pyroma.txt-raw
index 5ddfb659c..4ee4d7a94 100644
--- a/misc/requirements/requirements-pyroma.txt-raw
+++ b/misc/requirements/requirements-pyroma.txt-raw
@@ -1 +1,2 @@
 pyroma
+check-manifest
diff --git a/pyproject.toml b/pyproject.toml
index b0f076532..a6e22c411 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,12 @@
 [build-system]
 requires = ["setuptools>=42"]
 build-backend = "setuptools.build_meta"
+
+[tool.check-manifest]
+ignore = [
+    "qutebrowser/git-commit-id",
+    "qutebrowser/html/doc",
+    "qutebrowser/html/doc/*",
+    "qutebrowser/html/doc/img/cheatsheet-*.png",
+    "*/__pycache__",
+]
diff --git a/scripts/mkvenv.py b/scripts/mkvenv.py
index dfdb0a853..2f997b326 100755
--- a/scripts/mkvenv.py
+++ b/scripts/mkvenv.py
@@ -453,7 +453,6 @@ def install_dev_requirements(venv_dir: pathlib.Path) -> None:
     utils.print_title("Installing dev dependencies")
     pip_install(venv_dir,
                 '-r', str(requirements_file('dev')),
-                '-r', str(requirements_file('check-manifest')),
                 '-r', str(requirements_file('flake8')),
                 '-r', str(requirements_file('mypy')),
                 '-r', str(requirements_file('pyroma')),
diff --git a/tox.ini b/tox.ini
index 1432875d8..db9cf563d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py39-pyqt515-cov,mypy-pyqt5,misc,vulture,flake8,pylint,pyroma,check-manifest,eslint,yamllint,actionlint
+envlist = py39-pyqt515-cov,mypy-pyqt5,misc,vulture,flake8,pylint,pyroma,eslint,yamllint,actionlint
 distshare = {toxworkdir}
 skipsdist = true
 minversion = 3.20
@@ -169,14 +169,6 @@ deps =
 commands =
     {envdir}/bin/pyroma -n 10 .
 
-[testenv:check-manifest]
-basepython = {env:PYTHON:python3}
-passenv =
-deps =
-     -r{toxinidir}/misc/requirements/requirements-check-manifest.txt
-commands =
-    {envdir}/bin/check-manifest --ignore 'qutebrowser/git-commit-id,qutebrowser/html/doc,qutebrowser/html/doc/*,qutebrowser/html/doc/img/cheatsheet-*.png,*/__pycache__'
-
 [testenv:docs]
 basepython = {env:PYTHON:python3}
 passenv =