fix.

Author: tobiasraabe

tests/test_capture.py

@@ -750,11 +750,6 @@ def test_many(self, capfd):  # noqa: ARG002
 
 
 class TestStdCaptureFDinvalidFD:
-    @pytest.mark.skipif(
-        sys.platform == "darwin" and sys.version_info[:2] == (3, 9),
-        reason="Causes following tests to fail and kills the pytest session with exit "
-        "code 137.",
-    )
     def test_stdcapture_fd_invalid_fd(self, tmp_path, runner):
         source = """
         import os

tests/test_dag_command.py

@@ -62,9 +62,6 @@ def task_example(path=Path("input.txt")): ...
 
 
 @pytest.mark.skipif(not _TEST_SHOULD_RUN, reason="pygraphviz is required")
-@pytest.mark.xfail(
-    sys.platform == "linux" and sys.version_info[:2] == (3, 9), reason="flakey"
-)
 @pytest.mark.parametrize("layout", _GRAPH_LAYOUTS)
 @pytest.mark.parametrize("format_", _TEST_FORMATS)
 @pytest.mark.parametrize("rankdir", [_RankDirection.LR.value, _RankDirection.TB])

tests/test_execute.py

@@ -638,7 +638,7 @@ def task2() -> None: pass
 
 
 @pytest.mark.xfail(
-    sys.platform == "linux" and sys.version_info[:2] == (3, 9), reason="flakey"
+    sys.platform == "linux" and sys.version_info[:2] == (3, 10), reason="flakey"
 )
 def test_pytask_on_a_module_that_uses_the_functional_api(tmp_path):
     source = """