diff --git a/dev-requirements.txt b/dev-requirements.txt
index 200c6cb..d3dca1e 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -22,7 +22,7 @@ coverage[toml]==5.5
     # via pytest-cov
 distlib==0.3.2
     # via virtualenv
-docutils==0.17.1
+docutils==0.19
     # via
     #   recommonmark
     #   sphinx
@@ -32,7 +32,7 @@ filelock==3.0.12
     #   virtualenv
 idna==3.2
     # via requests
-imagesize==1.2.0
+imagesize==1.4.1
     # via sphinx
 iniconfig==1.1.1
     # via pytest
@@ -56,7 +56,7 @@ py==1.10.0
     # via
     #   pytest
     #   tox
-pygments==2.10.0
+pygments==2.14.0
     # via sphinx
 pyparsing==2.4.7
     # via packaging
@@ -83,7 +83,7 @@ six==1.16.0
     #   virtualenv
 snowballstemmer==2.1.0
     # via sphinx
-sphinx==4.3.1
+sphinx==6.1.3
     # via
     #   -r dev-requirements.in
     #   recommonmark
@@ -102,10 +102,11 @@ sphinxcontrib-serializinghtml==1.1.5
 toml==0.10.2
     # via
     #   coverage
-    #   pytest
     #   tox
 tomli==1.2.1
-    # via setuptools-scm
+    # via
+    #   pytest
+    #   setuptools-scm
 tox==3.24.5
     # via -r dev-requirements.in
 urllib3==1.26.6