diff --git a/.readthedocs.yml b/.readthedocs.yml
index 8b53050..341fe29 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,8 +1,8 @@
 version: 2  # required for PY39+
 build:
-  os: ubuntu-20.04
+  os: ubuntu-lts-latest
   tools:
-    python: "3.12"
+    python: "3.14"
   apt_packages:
     - "graphviz"
 
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 06e18a8..8e61cb7 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -29,7 +29,6 @@
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-    'hoverxref.extension',
     'myst_parser',
     'sphinx.ext.autodoc',
     'sphinx.ext.autosectionlabel',
@@ -52,12 +51,6 @@
 intersphinx_mapping = {
     'python': ('https://docs.python.org/3', None),
 }
-hoverxref_auto_ref = True
-hoverxref_default_type = 'tooltip'
-
-hoverxref_intersphinx = list(set(intersphinx_mapping) - {'python'})
-hoverxref_intersphinx_types = dict.fromkeys(intersphinx_mapping, hoverxref_default_type)
-hoverxref_domains = ['py']
 
 always_document_param_types = True
 
diff --git a/setup.cfg b/setup.cfg
index d99230b..c21bd18 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -23,5 +23,5 @@ packages = find:
 [options.extras_require]
 # docs dependencies install:
 # conda install --channel conda-forge pygraphviz
-# python -m pip install sphinx myst-parser sphinx-toggleprompt sphinx-copybutton sphinx-togglebutton sphinx-hoverxref sphinx_autodoc_typehints sphinx_rtd_theme
-docs = sphinx; myst-parser; sphinx-toggleprompt; sphinx-copybutton; sphinx-togglebutton; sphinx-hoverxref; sphinx_autodoc_typehints; sphinx_rtd_theme
+# python -m pip install sphinx myst-parser sphinx-toggleprompt sphinx-copybutton sphinx-togglebutton sphinx_autodoc_typehints sphinx_rtd_theme
+docs = sphinx; myst-parser; sphinx-toggleprompt; sphinx-copybutton; sphinx-togglebutton; sphinx_autodoc_typehints; sphinx_rtd_theme