diff --git a/pyproject.toml b/pyproject.toml
index 9538cb9..0fc8824 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ include = [
 
 [tool.poetry.dependencies]
 python = "^3.7"
-pytz = "^2022.7"
+pytz = "*"
 Flask = "^2.0.0"
 Babel = "^2.11.0"
 Jinja2 = "^3.1.2"
diff --git a/tests/test_date_formatting.py b/tests/test_date_formatting.py
index 5c79d90..4502c8e 100644
--- a/tests/test_date_formatting.py
+++ b/tests/test_date_formatting.py
@@ -13,22 +13,22 @@ def test_basics():
     delta = timedelta(days=6)
 
     with app.test_request_context():
-        assert babel.format_datetime(d) == 'Apr 12, 2010, 1:46:00 PM'
+        assert babel.format_datetime(d) == 'Apr 12, 2010, 1:46:00 PM'
         assert babel.format_date(d) == 'Apr 12, 2010'
-        assert babel.format_time(d) == '1:46:00 PM'
+        assert babel.format_time(d) == '1:46:00 PM'
         assert babel.format_timedelta(delta) == '1 week'
         assert babel.format_timedelta(delta, threshold=1) == '6 days'
 
     with app.test_request_context():
         get_babel(app).default_timezone = 'Europe/Vienna'
-        assert babel.format_datetime(d) == 'Apr 12, 2010, 3:46:00 PM'
+        assert babel.format_datetime(d) == 'Apr 12, 2010, 3:46:00 PM'
         assert babel.format_date(d) == 'Apr 12, 2010'
-        assert babel.format_time(d) == '3:46:00 PM'
+        assert babel.format_time(d) == '3:46:00 PM'
 
     with app.test_request_context():
         get_babel(app).default_locale = 'de_DE'
         assert babel.format_datetime(d, 'long') == \
-            '12. April 2010 um 15:46:00 MESZ'
+            '12. April 2010, 15:46:00 MESZ'
 
 
 def test_custom_formats():
@@ -64,7 +64,7 @@ def select_timezone():
     get_babel(app).timezone_selector = select_timezone
 
     with app.test_request_context():
-        assert babel.format_datetime(d) == 'Apr 12, 2010, 1:46:00 PM'
+        assert babel.format_datetime(d) == 'Apr 12, 2010, 1:46:00 PM'
 
     the_locale = 'de_DE'
     the_timezone = 'Europe/Vienna'
@@ -78,7 +78,7 @@ def test_refreshing():
     babel.Babel(app)
     d = datetime(2010, 4, 12, 13, 46)
     with app.test_request_context():
-        assert babel.format_datetime(d) == 'Apr 12, 2010, 1:46:00 PM'
+        assert babel.format_datetime(d) == 'Apr 12, 2010, 1:46:00 PM'
         get_babel(app).default_timezone = 'Europe/Vienna'
         babel.refresh()
-        assert babel.format_datetime(d) == 'Apr 12, 2010, 3:46:00 PM'
+        assert babel.format_datetime(d) == 'Apr 12, 2010, 3:46:00 PM'