diff --git a/parsel/selector.py b/parsel/selector.py
index fafd4a6..2027599 100644
--- a/parsel/selector.py
+++ b/parsel/selector.py
@@ -30,7 +30,7 @@
 from .utils import extract_regex, flatten, iflatten, shorten
 
 _SelectorType = TypeVar("_SelectorType", bound="Selector")
-_ParserType = Union[etree.XMLParser[etree._Element], etree.HTMLParser[etree._Element]]
+_ParserType = Union[etree.XMLParser, etree.HTMLParser]  # type: ignore[type-arg]
 # simplified _OutputMethodArg from types-lxml
 _TostringMethodType = Literal[
     "html",