diff --git a/gnu/packages/graphviz.scm b/gnu/packages/graphviz.scm
index ab39e49d7d..70b1c8cb97 100644
--- a/gnu/packages/graphviz.scm
+++ b/gnu/packages/graphviz.scm
@@ -6,7 +6,7 @@
 ;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Gábor Boskovits <boskovits@gmail.com>
 ;;; Copyright © 2018 Mathieu Lirzin <mthl@gnu.org>
-;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2020, 2022 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2020 Vincent Legoll <vincent.legoll@gmail.com>
 ;;; Copyright © 2020 Pjotr Prins <pjotr.guix@thebird.nl>
 ;;; Copyright © 2021 Bonface Munyoki Kilyungi <me@bonfacemunyoki.com>
@@ -395,7 +395,9 @@ (define-public python-pydot
      ;; For tests.
      (list graphviz python-chardet))
     (propagated-inputs
-     (list python-pyparsing))
+     ;; XXX: Two test failures with 3.0+:
+     ;; https://github.com/pydot/pydot/issues/277
+     (list python-pyparsing-2.4.7))
     (home-page "https://github.com/pydot/pydot")
     (synopsis "Python interface to Graphviz's DOT language")
     (description