diff --git a/doc/requirements.txt b/doc/requirements.txt
index 41a7c90f1..7769af5ae 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,3 +1,8 @@
-sphinx==4.3.0
+sphinx == 4.3.2
 sphinx_rtd_theme
+sphinxcontrib-applehelp >= 1.0.2, <= 1.0.4
+sphinxcontrib-devhelp == 1.0.2
+sphinxcontrib-htmlhelp >= 2.0.0, <= 2.0.1
+sphinxcontrib-qthelp == 1.0.3
+sphinxcontrib-serializinghtml == 1.1.5
 sphinx-autodoc-typehints