diff --git a/doc/requirements.txt b/doc/requirements.txt
index b1fd50d9ab3a35ac4d13100a6b6f68a5afa2188d..458d5d584d3a8020543e287c651b521e0479b713 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -16,13 +16,13 @@ pytz==2021.1
 requests==2.25.1
 six==1.16.0
 snowballstemmer==2.1.0
-Sphinx==4.0.1
-sphinx-rtd-theme==0.5.2
+Sphinx==4.5.0
+sphinx-rtd-theme==1.0.0
 sphinx-sitemap==2.2.0
 sphinxcontrib-applehelp==1.0.2
 sphinxcontrib-devhelp==1.0.2
-sphinxcontrib-htmlhelp==1.0.3
+sphinxcontrib-htmlhelp==2.0.0
 sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.3
-sphinxcontrib-serializinghtml==1.1.4
+sphinxcontrib-serializinghtml==1.1.5
 urllib3==1.26.7