diff --git a/pyproject.toml b/pyproject.toml
index 213cd1c..0099ee7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,6 +19,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
 ]
 dependencies = [
     "typer>=0.9.0",
diff --git a/tests/test_diff.py b/tests/test_diff.py
index 7f262bd..f9f21eb 100644
--- a/tests/test_diff.py
+++ b/tests/test_diff.py
@@ -546,6 +546,33 @@ def test_enum_values_removed_breaking(self):
         result = diff_specs(old, new)
         assert any(c.kind == "enum_values_removed" for c in result.changes)
 
+    def test_property_enum_values_removed_breaking(self):
+        """Property-level enum value removed is detected as breaking."""
+        old = _make_spec(schemas={
+            "Status": {
+                "type": "object",
+                "properties": {
+                    "state": {
+                        "type": "string",
+                        "enum": ["active", "inactive", "pending"],
+                    },
+                },
+            },
+        })
+        new = _make_spec(schemas={
+            "Status": {
+                "type": "object",
+                "properties": {
+                    "state": {
+                        "type": "string",
+                        "enum": ["active", "inactive"],
+                    },
+                },
+            },
+        })
+        result = diff_specs(old, new)
+        assert any(c.kind == "enum_values_removed" for c in result.changes)
+
     def test_no_schema_changes(self):
         old = _make_spec(schemas={"User": {"type": "object", "properties": {"id": {"type": "string"}}}})
         new = _make_spec(schemas={"User": {"type": "object", "properties": {"id": {"type": "string"}}}})