diff --git a/tests/models/test_mappedoperator.py b/tests/models/test_mappedoperator.py
index dd335f9ef89d3..473a2224830f7 100644
--- a/tests/models/test_mappedoperator.py
+++ b/tests/models/test_mappedoperator.py
@@ -1786,6 +1786,7 @@ def group(n: int) -> None:
         assert states == expected
 
 
+@pytest.mark.skip_if_database_isolation_mode  # Does not work in db isolation mode
 def test_mapped_tasks_in_mapped_task_group_waits_for_upstreams_to_complete(dag_maker, session):
     """Test that one failed trigger rule works well in mapped task group"""
     with dag_maker() as dag:
@@ -1817,6 +1818,7 @@ def t3(a):
     assert not ti3.state
 
 
+@pytest.mark.skip_if_database_isolation_mode  # Does not work in db isolation mode
 def test_mapped_tasks_in_mapped_task_group_waits_for_upstreams_to_complete__mapped_skip_with_all_success(
     dag_maker, session
 ):
diff --git a/tests/models/test_skipmixin.py b/tests/models/test_skipmixin.py
index 72ad956ae4c55..87001d0236ffd 100644
--- a/tests/models/test_skipmixin.py
+++ b/tests/models/test_skipmixin.py
@@ -116,6 +116,7 @@ def test_skip_none_tasks(self):
         assert not session.query.called
         assert not session.commit.called
 
+    @pytest.mark.skip_if_database_isolation_mode  # Does not work in db isolation mode
     def test_skip_mapped_task(self, mock_session):
         SkipMixin()._skip(
             dag_run=MagicMock(spec=DagRun),
@@ -128,6 +129,7 @@ def test_skip_mapped_task(self, mock_session):
         mock_session.execute.assert_not_called()
         mock_session.commit.assert_not_called()
 
+    @pytest.mark.skip_if_database_isolation_mode  # Does not work in db isolation mode
     @patch("airflow.models.skipmixin.update")
     def test_skip_none_mapped_task(self, mock_update, mock_session):
         SkipMixin()._skip(
diff --git a/tests/models/test_taskinstance.py b/tests/models/test_taskinstance.py
index b5dcb43de262d..15a9eb1ba3307 100644
--- a/tests/models/test_taskinstance.py
+++ b/tests/models/test_taskinstance.py
@@ -3768,6 +3768,7 @@ def test_echo_env_variables(self, dag_maker):
         ti.refresh_from_db()
         assert ti.state == State.SUCCESS
 
+    @pytest.mark.skip_if_database_isolation_mode  # Does not work in db isolation mode, fails in context serialization
     @pytest.mark.parametrize(
         "code, expected_state",
         [