diff --git a/doc/requirements.txt b/doc/requirements.txt
index 7d3ab7fdb..bed9adb96 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,4 +1,4 @@
-sphinx>=1.6.1
+sphinx>=1.6.1,!=7.2.5
 sphinxcontrib-programoutput
 sphinxcontrib-httpdomain
 reno>=2.5.0 # Apache-2.0