diff --git a/.github/workflows/deploy-release.yml b/.github/workflows/deploy-release.yml
index 053986dd..ee1dcc5a 100644
--- a/.github/workflows/deploy-release.yml
+++ b/.github/workflows/deploy-release.yml
@@ -6,7 +6,6 @@ on:
     - '*'
 
 jobs:
-
   pypi:
     runs-on: ubuntu-latest
     steps:
@@ -15,14 +14,10 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.9
-      - name: Install dependencies
+      - name: Install Hatch
         run: |
-          python -m pip install -U hatch babel
-      - name: Compile localization message files
-        run: |
-          pybabel compile --statistics --directory mkdocs/themes/mkdocs/locales
-          pybabel compile --statistics --directory mkdocs/themes/readthedocs/locales
-      - name: Build
+          python -m pip install -U hatch
+      - name: Build package
         run: |
           hatch build
       - name: Publish
diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 7fc761a7..064c46f9 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -93,18 +93,24 @@ jobs:
         if: always()
         run: python -m tox -e codespell
 
-  translation:
+  package:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - name: Setup Python
         uses: actions/setup-python@v2
         with:
-          python-version: 3.7
-      - name: Install Python dependencies
+          python-version: 3.9
+      - name: Install Hatch
         run: |
-          python -m pip install babel
-      - name: Compile localization message files
+          python -m pip install -U hatch
+      - name: Build package
         run: |
-          pybabel compile --statistics --directory mkdocs/themes/mkdocs/locales
-          pybabel compile --statistics --directory mkdocs/themes/readthedocs/locales
+          hatch build
+      - name: Check packaged files
+        shell: bash -e -x {0}
+        run: |
+          expected_wheel=(-emkdocs/{templates/sitemap.xml,config/base.py,py.typed,contrib/search/lunr-language/lunr.nl.js,themes/{mkdocs,readthedocs}/{base.html,locales/{de,es}/LC_MESSAGES/messages.mo}})
+          expected_sdist=("${expected_wheel[@]}" -e{pyproject.toml,hatch_build.py})
+          test "$(tar -ztf dist/mkdocs-*.tar.gz | grep -F "${expected_sdist[@]}" | tee /dev/stderr | wc -l)" -eq "${#expected_sdist[@]}"
+          test "$(unzip -l dist/mkdocs-*any.whl | grep -F "${expected_wheel[@]}" | tee /dev/stderr | wc -l)" -eq "${#expected_wheel[@]}"
diff --git a/hatch_build.py b/hatch_build.py
new file mode 100644
index 00000000..9f76ebdd
--- /dev/null
+++ b/hatch_build.py
@@ -0,0 +1,14 @@
+import os
+
+from hatchling.builders.hooks.plugin.interface import BuildHookInterface
+
+
+class CustomBuildHook(BuildHookInterface):
+    def initialize(self, version, build_data):
+        from babel.messages.frontend import compile_catalog
+
+        for theme in 'mkdocs', 'readthedocs':
+            cmd = compile_catalog()
+            cmd.directory = os.path.join('mkdocs', 'themes', theme, 'locales')
+            cmd.finalize_options()
+            cmd.run()
diff --git a/pyproject.toml b/pyproject.toml
index f80be6c6..34711d8e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -75,6 +75,10 @@ artifacts = ["/mkdocs/**/*.mo"]
 include = ["/mkdocs"]
 [tool.hatch.build.targets.wheel]
 exclude = ["/mkdocs/tests/integration", "*.po", "*.pot", "babel.cfg"]
+[tool.hatch.build.hooks.custom]
+dependencies = [
+    "babel",
+]
 
 [tool.black]
 line-length = 100