Fix Python version since which external enities are not resolved by default. (GH-11237)
diff --git a/Doc/library/xml.rst b/Doc/library/xml.rst
index be12729..fb86b6f 100644
--- a/Doc/library/xml.rst
+++ b/Doc/library/xml.rst
@@ -75,7 +75,7 @@
2. :mod:`xml.dom.minidom` doesn't expand external entities and simply returns
the unexpanded entity verbatim.
3. :mod:`xmlrpclib` doesn't expand external entities and omits them.
-4. Since Python 3.8, external general entities are no longer processed by
+4. Since Python 3.7.1, external general entities are no longer processed by
default.