diff --git a/requirements/doc/doc-requirements.txt b/requirements/doc/doc-requirements.txt
index 30b7c0c88669..4e2188d65725 100644
--- a/requirements/doc/doc-requirements.txt
+++ b/requirements/doc/doc-requirements.txt
@@ -13,6 +13,7 @@ ipython
 ipywidgets
 numpydoc>=0.8
 packaging>=20
+pyparsing<3.0.0
 pydata-sphinx-theme>=0.6.0
 sphinxcontrib-svg2pdfconverter>=1.1.0
 sphinx-gallery>=0.10
diff --git a/requirements/testing/all.txt b/requirements/testing/all.txt
index fb7beef90f16..d11ac58331cc 100644
--- a/requirements/testing/all.txt
+++ b/requirements/testing/all.txt
@@ -2,6 +2,7 @@
 
 certifi
 coverage
+pyparsing<3.0.0
 pytest!=4.6.0,!=5.4.0
 pytest-cov
 pytest-rerunfailures