diff --git a/doc/requirements.txt b/doc/requirements.txt
index 8bd17c45b..612dab355 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -3,3 +3,9 @@ sphinx-rtd-theme==0.5.2
 sphinx==4.3.2
 breathe==4.31.0
 myst_parser==0.18.0
+sphinxcontrib_applehelp==1.0.4
+sphinxcontrib-devhelp==1.0.2
+sphinxcontrib-htmlhelp==2.0.1
+sphinxcontrib-jsmath==1.0.1
+sphinxcontrib-qthelp==1.0.3
+sphinxcontrib-serializinghtml==1.1.5