diff --git a/tests/unit/browser/webengine/test_webenginesettings.py b/tests/unit/browser/webengine/test_webenginesettings.py
index 00549f7f7..e396e168b 100644
--- a/tests/unit/browser/webengine/test_webenginesettings.py
+++ b/tests/unit/browser/webengine/test_webenginesettings.py
@@ -40,9 +40,7 @@ def test_big_cache_size(config_stub):
     """Make sure a too big cache size is handled correctly."""
     config_stub.val.content.cache.size = 2 ** 63 - 1
     profile = webenginesettings.default_profile
-
-    webenginesettings._set_http_cache_size(profile)
-
+    profile.setter.set_http_cache_size()
     assert profile.httpCacheMaximumSize() == 2 ** 31 - 1
 
 
diff --git a/tests/unit/javascript/stylesheet/test_stylesheet.py b/tests/unit/javascript/stylesheet/test_stylesheet.py
index d640e8a19..df11d22a3 100644
--- a/tests/unit/javascript/stylesheet/test_stylesheet.py
+++ b/tests/unit/javascript/stylesheet/test_stylesheet.py
@@ -56,8 +56,9 @@ class StylesheetTester:
         """Initialize the stylesheet with a provided css file."""
         css_path = os.path.join(os.path.dirname(__file__), css_file)
         self.config_stub.val.content.user_stylesheets = css_path
-        p = QWebEngineProfile.defaultProfile()
-        webenginesettings._init_stylesheet(p)
+        profile = QWebEngineProfile.defaultProfile()
+        setter = webenginesettings.ProfileSetter(profile)
+        setter.init_stylesheet()
 
     def set_css(self, css):
         """Set document style to `css` via stylesheet.js."""