From 648fdd44da2e229a718eabd2f7486d1c1c17322f Mon Sep 17 00:00:00 2001
From: "Adam J. Stewart" <ajstewart426@gmail.com>
Date: Sun, 24 Jul 2022 14:45:01 -0700
Subject: [PATCH] Sphinx 5.1.0 breaks doc builds (#31709)

---
 lib/spack/docs/requirements.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index b0d91dfc97254b..08cd3ea4eb648e 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -1,7 +1,7 @@
 # These dependencies should be installed using pip in order
 # to build the documentation.
 
-sphinx>=3.4,!=4.1.2
+sphinx>=3.4,!=4.1.2,!=5.1.0
 sphinxcontrib-programoutput
 sphinx-rtd-theme
 python-levenshtein