diff --git a/pendulum/date.py b/pendulum/date.py
index 4e2655ba..f2aec479 100644
--- a/pendulum/date.py
+++ b/pendulum/date.py
@@ -173,7 +173,7 @@ def is_anniversary(self, dt: date | None = None) -> bool:
         Compares the date/month values of the two dates.
         """
         if dt is None:
-            dt = Date.today()
+            dt = self.__class__.today()
 
         instance = self.__class__(dt.year, dt.month, dt.day)
 
diff --git a/tests/date/test_diff.py b/tests/date/test_diff.py
index 56358cc8..cfececfc 100644
--- a/tests/date/test_diff.py
+++ b/tests/date/test_diff.py
@@ -9,7 +9,7 @@
 
 @pytest.fixture
 def today():
-    return pendulum.today().date()
+    return pendulum.Date.today()
 
 
 def test_diff_in_years_positive():