diff --git a/doc/requirements.txt b/doc/requirements.txt
index 413dd345d..81fa7525c 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -2,7 +2,7 @@
 sphinx==7.0
 openstackdocstheme>=2.2.1,<=2.3.1 # Apache-2.0
 docutils==0.18.1
-PyYAML==6.0
+PyYAML==6.0.2
 sphinx-tabs<=3.4.1
 
 # API Reference Guide