diff --git a/pydantic_settings/main.py b/pydantic_settings/main.py
index 723d6d5..4903ffc 100644
--- a/pydantic_settings/main.py
+++ b/pydantic_settings/main.py
@@ -424,7 +424,7 @@ def _settings_build_values(
         yaml_file_encoding=None,
         toml_file=None,
         secrets_dir=None,
-        protected_namespaces=('model_', 'settings_'),
+        protected_namespaces=('model_validate', 'model_dump', 'settings_customise_sources'),
     )
 
 
diff --git a/tests/test_settings.py b/tests/test_settings.py
index 2179817..143b285 100644
--- a/tests/test_settings.py
+++ b/tests/test_settings.py
@@ -2202,26 +2202,28 @@ class Settings(BaseSettings):
 def test_protected_namespace_defaults():
     # pydantic default
     with pytest.warns(
-        UserWarning, match='Field "model_prefixed_field" in Model has conflict with protected namespace "model_"'
+        UserWarning,
+        match='Field "model_dump_prefixed_field" in Model has conflict with protected namespace "model_dump"',
     ):
 
         class Model(BaseSettings):
-            model_prefixed_field: str
+            model_dump_prefixed_field: str
 
     # pydantic-settings default
     with pytest.warns(
-        UserWarning, match='Field "settings_prefixed_field" in Model1 has conflict with protected namespace "settings_"'
+        UserWarning,
+        match='Field "settings_customise_sources_prefixed_field" in Model1 has conflict with protected namespace "settings_customise_sources"',
     ):
 
         class Model1(BaseSettings):
-            settings_prefixed_field: str
+            settings_customise_sources_prefixed_field: str
 
     with pytest.raises(
         NameError,
         match=(
             'Field "settings_customise_sources" conflicts with member <bound method '
             "BaseSettings.settings_customise_sources of <class 'pydantic_settings.main.BaseSettings'>> "
-            'of protected namespace "settings_".'
+            'of protected namespace "settings_customise_sources".'
         ),
     ):