diff --git a/.gitignore b/.gitignore
index 800c70e..68a2f5f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,6 @@
 /example/database.sqlite3
 /example/GeoLiteCity.dat
 /django_user_sessions.egg-info/
-/tests/test_city.mmdb
-/tests/test_country.mmdb
 
 /htmlcov/
 
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ec76055..d037fce 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,3 +18,11 @@ repos:
     hooks:
       - id: ruff
         args: [--fix, --exit-non-zero-on-fix]
+  - repo: local
+    hooks:
+      - id: generate-mmdb-fixtures
+        name: Regenerate MaxMind database files
+        language: system
+        entry: make tests/test_city.mmdb tests/test_country.mmdb
+        always_run: true
+        pass_filenames: false
diff --git a/Makefile b/Makefile
index 5a87979..a4291dd 100644
--- a/Makefile
+++ b/Makefile
@@ -13,11 +13,15 @@ check:
 	DJANGO_SETTINGS_MODULE=example.settings PYTHONPATH=. \
 		python -Wd example/manage.py check
 
-generate-mmdb-fixtures:
+tests/test_city.mmdb: tests/Dockerfile tests/generate_mmdb.pl
 	docker --context=default buildx build -f tests/Dockerfile --tag test-mmdb-maker tests
 	docker run --rm --volume $$(pwd)/tests:/data test-mmdb-maker
 
-test: generate-mmdb-fixtures
+tests/test_country.mmdb: tests/Dockerfile tests/generate_mmdb.pl
+	docker --context=default buildx build -f tests/Dockerfile --tag test-mmdb-maker tests
+	docker run --rm --volume $$(pwd)/tests:/data test-mmdb-maker
+
+test: tests/test_city.mmdb tests/test_country.mmdb
 	DJANGO_SETTINGS_MODULE=tests.settings PYTHONPATH=. \
 		django-admin.py test ${TARGET}
 
diff --git a/tests/test_city.mmdb b/tests/test_city.mmdb
new file mode 100644
index 0000000..9533ba8
Binary files /dev/null and b/tests/test_city.mmdb differ
diff --git a/tests/test_country.mmdb b/tests/test_country.mmdb
new file mode 100644
index 0000000..f44a8c0
Binary files /dev/null and b/tests/test_country.mmdb differ
diff --git a/tox.ini b/tox.ini
index 191e76f..893502b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -27,7 +27,6 @@ DJANGO =
 
 [testenv]
 commands =
-    make generate-mmdb-fixtures
     coverage run {envbindir}/django-admin test -v 2 --pythonpath=./ --settings=tests.settings
     coverage report
     coverage xml
@@ -41,4 +40,3 @@ deps =
     geoip2
 ignore_outcome =
     djmain: True
-allowlist_externals = make