diff --git a/requirements/dev.txt b/requirements/dev.txt
index c95df5de..7d5648cf 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -98,7 +98,7 @@ six==1.16.0
     #   virtualenv
 snowballstemmer==2.1.0
     # via sphinx
-sphinx==4.0.2
+sphinx==4.1.2
     # via
     #   -r requirements/docs.in
     #   pallets-sphinx-themes
@@ -113,7 +113,7 @@ sphinxcontrib-applehelp==1.0.2
     # via sphinx
 sphinxcontrib-devhelp==1.0.2
     # via sphinx
-sphinxcontrib-htmlhelp==1.0.3
+sphinxcontrib-htmlhelp==2.0.0
     # via sphinx
 sphinxcontrib-jsmath==1.0.1
     # via sphinx
@@ -121,7 +121,7 @@ sphinxcontrib-log-cabinet==1.0.1
     # via -r requirements/docs.in
 sphinxcontrib-qthelp==1.0.3
     # via sphinx
-sphinxcontrib-serializinghtml==1.1.4
+sphinxcontrib-serializinghtml==1.1.5
     # via sphinx
 toml==0.10.2
     # via
diff --git a/requirements/docs.txt b/requirements/docs.txt
index e59cd0d4..17730411 100644
--- a/requirements/docs.txt
+++ b/requirements/docs.txt
@@ -42,7 +42,7 @@ requests==2.25.1
     # via sphinx
 snowballstemmer==2.1.0
     # via sphinx
-sphinx==4.0.2
+sphinx==4.1.2
     # via
     #   -r requirements/docs.in
     #   pallets-sphinx-themes
@@ -57,7 +57,7 @@ sphinxcontrib-applehelp==1.0.2
     # via sphinx
 sphinxcontrib-devhelp==1.0.2
     # via sphinx
-sphinxcontrib-htmlhelp==1.0.3
+sphinxcontrib-htmlhelp==2.0.0
     # via sphinx
 sphinxcontrib-jsmath==1.0.1
     # via sphinx
@@ -65,7 +65,7 @@ sphinxcontrib-log-cabinet==1.0.1
     # via -r requirements/docs.in
 sphinxcontrib-qthelp==1.0.3
     # via sphinx
-sphinxcontrib-serializinghtml==1.1.4
+sphinxcontrib-serializinghtml==1.1.5
     # via sphinx
 urllib3==1.26.5
     # via requests