diff --git a/moveit_ros/planning/planning_scene_monitor/test/launch/planning_scene_monitor.test.py b/moveit_ros/planning/planning_scene_monitor/test/launch/planning_scene_monitor.test.py
index 0e9aa717ae..0f785d4d7d 100644
--- a/moveit_ros/planning/planning_scene_monitor/test/launch/planning_scene_monitor.test.py
+++ b/moveit_ros/planning/planning_scene_monitor/test/launch/planning_scene_monitor.test.py
@@ -80,6 +80,7 @@ def generate_test_description():
 
 
 class TestGTestWaitForCompletion(unittest.TestCase):
+    @unittest.skip("Flaky test on humble, see moveit2#2821")
     # Waits for test to complete, then waits a bit to make sure result files are generated
     def test_gtest_run_complete(self, psm_gtest):
         self.proc_info.assertWaitForShutdown(psm_gtest, timeout=4000.0)
@@ -87,6 +88,7 @@ def test_gtest_run_complete(self, psm_gtest):
 
 @launch_testing.post_shutdown_test()
 class TestGTestProcessPostShutdown(unittest.TestCase):
+    @unittest.skip("Flaky test on humble, see moveit2#2821")
     # Checks if the test has been completed with acceptable exit codes (successful codes)
     def test_gtest_pass(self, proc_info, psm_gtest):
         launch_testing.asserts.assertExitCodes(proc_info, process=psm_gtest)