diff --git a/lib/matplotlib/_mathtext.py b/lib/matplotlib/_mathtext.py
index 73e6163944e1..4292084abba9 100644
--- a/lib/matplotlib/_mathtext.py
+++ b/lib/matplotlib/_mathtext.py
@@ -15,7 +15,7 @@
from pyparsing import (
Combine, Empty, FollowedBy, Forward, Group, Literal, oneOf, OneOrMore,
Optional, ParseBaseException, ParseFatalException, ParserElement,
- ParseResults, QuotedString, Regex, StringEnd, Suppress, ZeroOrMore)
+ ParseResults, QuotedString, Regex, StringEnd, Suppress, White, ZeroOrMore)
import matplotlib as mpl
from . import _api, cbook
@@ -2060,6 +2060,7 @@ def __init__(self):
p.accent <<= Group(
Suppress(p.bslash)
+ oneOf([*self._accent_map, *self._wide_accents])
+ + Suppress(Optional(White()))
- p.placeable
)
diff --git a/requirements/doc/doc-requirements.txt b/requirements/doc/doc-requirements.txt
index afb5c4105fae..c77787e4c72b 100644
--- a/requirements/doc/doc-requirements.txt
+++ b/requirements/doc/doc-requirements.txt
@@ -13,7 +13,6 @@ ipython
ipywidgets
numpydoc>=0.8
packaging>=20
-pyparsing<3.0.0
mpl-sphinx-theme
sphinxcontrib-svg2pdfconverter>=1.1.0
sphinx-gallery>=0.10
diff --git a/requirements/testing/all.txt b/requirements/testing/all.txt
index d11ac58331cc..fb7beef90f16 100644
--- a/requirements/testing/all.txt
+++ b/requirements/testing/all.txt
@@ -2,7 +2,6 @@
certifi
coverage
-pyparsing<3.0.0
pytest!=4.6.0,!=5.4.0
pytest-cov
pytest-rerunfailures
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