diff --git a/src/_pytest/python.py b/src/_pytest/python.py
index 52f4a8881..ca679ab73 100644
--- a/src/_pytest/python.py
+++ b/src/_pytest/python.py
@@ -1668,7 +1668,7 @@ class DeprecatingFuncArgs(Dict[str, object]):
 
     def __getitem__(self, key: str) -> object:
         if key not in self.initialnames:
-            warnings.warn(ITEM_FUNCARGS_MEMBERS)
+            warnings.warn(ITEM_FUNCARGS_MEMBERS, stacklevel=2)
         return super().__getitem__(key)