diff --git a/tests/units/test_prerequisites.py b/tests/units/test_prerequisites.py
index 2497318e7..90afe0963 100644
--- a/tests/units/test_prerequisites.py
+++ b/tests/units/test_prerequisites.py
@@ -105,8 +105,8 @@ def test_initialize_requirements_txt_no_op(mocker):
         return_value=Mock(best=lambda: Mock(encoding="utf-8")),
     )
     mock_fp_touch = mocker.patch("pathlib.Path.touch")
-    open_mock = mock_open(read_data="reflex==0.2.9")
-    mocker.patch("builtins.open", open_mock)
+    open_mock = mock_open(read_data="reflex==0.6.7")
+    mocker.patch("pathlib.Path.open", open_mock)
     initialize_requirements_txt()
     assert open_mock.call_count == 1
     assert open_mock.call_args.kwargs["encoding"] == "utf-8"
@@ -122,7 +122,7 @@ def test_initialize_requirements_txt_missing_reflex(mocker):
         return_value=Mock(best=lambda: Mock(encoding="utf-8")),
     )
     open_mock = mock_open(read_data="random-package=1.2.3")
-    mocker.patch("builtins.open", open_mock)
+    mocker.patch("pathlib.Path.open", open_mock)
     initialize_requirements_txt()
     # Currently open for read, then open for append
     assert open_mock.call_count == 2
@@ -138,7 +138,7 @@ def test_initialize_requirements_txt_not_exist(mocker):
     # File does not exist, create file with reflex
     mocker.patch("pathlib.Path.exists", return_value=False)
     open_mock = mock_open()
-    mocker.patch("builtins.open", open_mock)
+    mocker.patch("pathlib.Path.open", open_mock)
     initialize_requirements_txt()
     assert open_mock.call_count == 2
     # By default, use utf-8 encoding
@@ -170,7 +170,7 @@ def test_requirements_txt_other_encoding(mocker):
     )
     initialize_requirements_txt()
     open_mock = mock_open(read_data="random-package=1.2.3")
-    mocker.patch("builtins.open", open_mock)
+    mocker.patch("pathlib.Path.open", open_mock)
     initialize_requirements_txt()
     # Currently open for read, then open for append
     assert open_mock.call_count == 2
diff --git a/tests/units/utils/test_utils.py b/tests/units/utils/test_utils.py
index a13652bc4..710930f25 100644
--- a/tests/units/utils/test_utils.py
+++ b/tests/units/utils/test_utils.py
@@ -270,7 +270,7 @@ def test_unsupported_literals(cls: type):
         ("appname2.io", "AppnameioConfig"),
     ],
 )
-def test_create_config(app_name, expected_config_name, mocker):
+def test_create_config(app_name: str, expected_config_name: str, mocker):
     """Test templates.RXCONFIG is formatted with correct app name and config class name.
 
     Args:
@@ -278,7 +278,7 @@ def test_create_config(app_name, expected_config_name, mocker):
         expected_config_name: Expected config name.
         mocker: Mocker object.
     """
-    mocker.patch("builtins.open")
+    mocker.patch("pathlib.Path.write_text")
     tmpl_mock = mocker.patch("reflex.compiler.templates.RXCONFIG")
     prerequisites.create_config(app_name)
     tmpl_mock.render.assert_called_with(
@@ -464,7 +464,7 @@ def test_node_install_unix(tmp_path, mocker, machine, system):
     mocker.patch("httpx.stream", return_value=Resp())
     download = mocker.patch("reflex.utils.prerequisites.download_and_extract_fnm_zip")
     process = mocker.patch("reflex.utils.processes.new_process")
-    chmod = mocker.patch("reflex.utils.prerequisites.os.chmod")
+    chmod = mocker.patch("pathlib.Path.chmod")
     mocker.patch("reflex.utils.processes.stream_logs")
 
     prerequisites.install_node()