diff --git a/src/tests/test_jsproxy.py b/src/tests/test_jsproxy.py
index ec6ab383b..71890d21c 100644
--- a/src/tests/test_jsproxy.py
+++ b/src/tests/test_jsproxy.py
@@ -376,7 +376,8 @@ def test_window_isnt_super_weird_anymore():
 
 
 @pytest.mark.skip_refcount_check
-def test_mount_object(selenium):
+def test_mount_object(selenium_standalone):
+    selenium = selenium_standalone
     result = selenium.run_js(
         """
         function x1(){
@@ -458,7 +459,8 @@ def test_unregister_jsmodule_error(selenium):
 
 
 @pytest.mark.skip_refcount_check
-def test_nested_import(selenium):
+def test_nested_import(selenium_standalone):
+    selenium = selenium_standalone
     assert (
         selenium.run_js(
             """
@@ -478,7 +480,8 @@ def test_nested_import(selenium):
 
 
 @pytest.mark.skip_refcount_check
-def test_register_jsmodule_docs_example(selenium):
+def test_register_jsmodule_docs_example(selenium_standalone):
+    selenium = selenium_standalone
     selenium.run_js(
         """
         let my_module = {
diff --git a/src/tests/test_typeconversions.py b/src/tests/test_typeconversions.py
index 27a032d6a..b2f361fa7 100644
--- a/src/tests/test_typeconversions.py
+++ b/src/tests/test_typeconversions.py
@@ -1,11 +1,12 @@
 # See also test_pyproxy, test_jsproxy, and test_python.
 import pytest
-from hypothesis import given
+from hypothesis import given, settings
 from hypothesis.strategies import text
 from conftest import selenium_context_manager
 
 
 @given(s=text())
+@settings(deadline=600)
 def test_string_conversion(selenium_module_scope, s):
     with selenium_context_manager(selenium_module_scope) as selenium:
         # careful string escaping here -- hypothesis will fuzz it.