diff --git a/python/ray/tests/test_client_builder.py b/python/ray/tests/test_client_builder.py
index 093be29372f10..e67023c15ef40 100644
--- a/python/ray/tests/test_client_builder.py
+++ b/python/ray/tests/test_client_builder.py
@@ -55,6 +55,10 @@ def test_client(address):
         assert builder.address == address.replace("ray://", "")
 
 
+@pytest.mark.skipif(
+    skip_flaky_test(),
+    reason="https://github.com/ray-project/ray/issues/38224",
+)
 def test_namespace(ray_start_cluster):
     """
     Most of the "checks" in this test case rely on the fact that
diff --git a/python/ray/tests/test_runtime_env_working_dir_3.py b/python/ray/tests/test_runtime_env_working_dir_3.py
index 03fb3bbcf09af..4d2c8fd2da3ae 100644
--- a/python/ray/tests/test_runtime_env_working_dir_3.py
+++ b/python/ray/tests/test_runtime_env_working_dir_3.py
@@ -348,6 +348,10 @@ def test_import(self):
         wait_for_condition(lambda: check_local_files_gced(cluster, whitelist=whitelist))
         print("check_local_files_gced passed wait_for_condition block.")
 
+    @pytest.mark.skipif(
+        skip_flaky_test(),
+        reason="https://github.com/ray-project/ray/issues/40781",
+    )
     def test_hit_cache_size_limit(
         self, start_cluster, URI_cache_10_MB, disable_temporary_uri_pinning
     ):