diff --git a/airflow/providers/openlineage/plugins/facets.py b/airflow/providers/openlineage/plugins/facets.py
index b50db6c2671ee..4037b9026a4cc 100644
--- a/airflow/providers/openlineage/plugins/facets.py
+++ b/airflow/providers/openlineage/plugins/facets.py
@@ -28,7 +28,7 @@ class AirflowMappedTaskRunFacet(BaseFacet):
     mapIndex: int
     operatorClass: str
 
-    _additional_skip_redact: list[str] = ["operatorClass"]
+    _additional_skip_redact = ["operatorClass"]
 
     @classmethod
     def from_task_instance(cls, task_instance):
@@ -63,7 +63,7 @@ class UnknownOperatorInstance(RedactMixin):
     properties: dict[str, object]
     type: str = "operator"
 
-    _skip_redact: list[str] = ["name", "type"]
+    _skip_redact = ["name", "type"]
 
 
 @define(slots=False)