Update dependencies

docs/conf.py

@@ -160,8 +160,8 @@ def _warn_node(self, msg, node, **kwargs):
 # Add custom .css files
 # https://github.com/snide/sphinx_rtd_theme/issues/117#issuecomment-41571653
 def setup(app):
-   app.add_stylesheet("custom.css")
-   app.add_stylesheet("rtfd-css.css")
+   app.add_css_file("custom.css")
+   app.add_css_file("rtfd-css.css")
 
 # Add any extra paths that contain custom files (such as robots.txt or
 # .htaccess) here, relative to this directory. These files are copied

docs/jenkins.sh

@@ -12,19 +12,19 @@ src="${venv_dir}/bin/activate"
 
 if [ ! -f "${src}" ];
 then
-  virtualenv "${venv_dir}"
+  python3 -m venv "${venv_dir}"
 fi
 
 source "${src}"
 
-which python
-python --version
+which python3
+python3 --version
 
-which pip
-pip --version
+which pip3
+pip3 --version
 
-pip install -U pip
-pip install -r requirements.txt
+pip3 install -U pip
+pip3 install -r requirements.txt
 
 rm -rf _build _static _spelling
 

docs/requirements.txt

@@ -1,4 +1,4 @@
-Sphinx==1.4.5
-sphinx-rtd-theme==0.4.0
-sphinxcontrib-spelling==2.2.0
-docutils==0.16
+Sphinx==6.2.1
+sphinx-rtd-theme==1.2.0
+sphinxcontrib-spelling==8.0.0
+docutils==0.18.1