diff --git a/lib/spack/docs/requirements.txt b/lib/spack/docs/requirements.txt
index 7ab8c526547..44175623c5e 100644
--- a/lib/spack/docs/requirements.txt
+++ b/lib/spack/docs/requirements.txt
@@ -1,4 +1,4 @@
-sphinx==8.2.1
+sphinx==8.2.3
 sphinxcontrib-programoutput==0.18
 sphinx_design==0.6.1
 sphinx-rtd-theme==3.0.2