diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index 3e958657e8749e..a92089b24b4d3a 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -1,4 +1,4 @@
-sphinx==6.2.1
+sphinx==7.1.1
 sphinxcontrib-programoutput==0.17
 sphinx_design==0.4.1
 sphinx-rtd-theme==1.2.2