diff --git a/.nengobones.yml b/.nengobones.yml
index c6c275c..88a8b93 100644
--- a/.nengobones.yml
+++ b/.nengobones.yml
@@ -29,11 +29,9 @@ setup_py:
       - nengo_sphinx_theme=nengo_sphinx_theme
   include_package_data: True
   install_req:
-    - docutils<0.17 # can remove this if we upgrade to more recent sphinx
-    - sphinx>=3.1.2,<4.0
-    - sphinx-notfound-page>=0.5.0
+    - sphinx>=7.2.6
+    - sphinx-notfound-page>=1.0.0
     - backoff>=1.10.0
-    - jinja2<3.1.0 # can remove this if we upgrade to sphinx>=4.0
   docs_req:
     - jupyter
     - matplotlib
@@ -47,8 +45,7 @@ setup_py:
     - "Operating System :: Microsoft :: Windows"
     - "Operating System :: POSIX :: Linux"
     - "Programming Language :: Python"
-    - "Programming Language :: Python :: 3.6"
-    - "Programming Language :: Python :: 3.7"
+    - "Programming Language :: Python :: 3.9"
     - "Topic :: Software Development"
 
 setup_cfg:
diff --git a/LICENSE.rst b/LICENSE.rst
index 59d1e92..5073d88 100644
--- a/LICENSE.rst
+++ b/LICENSE.rst
@@ -4,7 +4,7 @@
 Nengo Sphinx Theme license
 **************************
 
-Copyright (c) 2019-2023 Applied Brain Research
+Copyright (c) 2019-2024 Applied Brain Research
 
 **ABR License**
 
diff --git a/docs/conf.py b/docs/conf.py
index 4304e44..2534fa5 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -88,7 +88,7 @@
 
 project = "Nengo Sphinx Theme"
 authors = "Applied Brain Research"
-copyright = "2019-2023 Applied Brain Research"
+copyright = "2019-2024 Applied Brain Research"
 version = ".".join(nengo_sphinx_theme.__version__.split(".")[:2])  # Short X.Y version
 release = nengo_sphinx_theme.__version__  # Full version, with tags
 
diff --git a/nengo_sphinx_theme/ext/autoautosummary.py b/nengo_sphinx_theme/ext/autoautosummary.py
index 9bdbfc9..37ad3d6 100644
--- a/nengo_sphinx_theme/ext/autoautosummary.py
+++ b/nengo_sphinx_theme/ext/autoautosummary.py
@@ -11,7 +11,7 @@
 from docutils.parsers.rst import directives
 from sphinx.ext import autodoc, autosummary
 from sphinx.ext.autodoc import StringList, _
-from sphinx.util.typing import stringify
+from sphinx.util.typing import stringify_annotation
 
 # We import nengo_sphinx_theme here to test the issue that
 # `patch_autosummary_import_by_name` fixes.
@@ -149,10 +149,10 @@ def patch_autosummary_import_by_name():
 
     orig_f = autosummary.import_by_name
 
-    def import_by_name(name, prefixes):
+    def import_by_name(name, prefixes=(None,)):
         # We currently do not support prefixes, because they can cause cycles. If we
         # need this in the future, we can go back to filtering problematic prefixes.
-        prefixes = [None]
+        prefixes = (None,)
         return orig_f(name, prefixes)
 
     autosummary.import_by_name = import_by_name
@@ -187,12 +187,11 @@ def add_directive_header(self, sig):
 class RenameClassDocumenter(RenameMixin, autodoc.ClassDocumenter):
     """Class autodocumenter with optional renaming."""
 
-    def add_content(self, more_content, no_docstring=False):
+    def add_content(self, more_content):
         # This is a modified version of autodoc.ClassDocumenter.add_content
         # that changes the module name for aliases
-        no_docstring = False
         if self.doc_as_attr:
-            fullname = stringify(self.object)
+            fullname = stringify_annotation(self.object)
             modname = self.env.config["autoautosummary_change_modules"].get(
                 fullname, ".".join(fullname.split(".")[:-1])
             )
@@ -200,13 +199,8 @@ def add_content(self, more_content, no_docstring=False):
             more_content = StringList(
                 [_(f"alias of :class:`{modname}.{fullname.split('.')[-1]}`")], source=""
             )
-            no_docstring = True
 
-        # no_docstring only needs to be specified in sphinx<3.4
-        # pylint: disable=bad-super-call
-        super(autodoc.ClassDocumenter, self).add_content(
-            more_content, no_docstring=no_docstring
-        )
+        super(autodoc.ClassDocumenter, self).add_content(more_content)
 
 
 class RenameFunctionDocumenter(RenameMixin, autodoc.FunctionDocumenter):
diff --git a/nengo_sphinx_theme/version.py b/nengo_sphinx_theme/version.py
index 0036117..722c22f 100644
--- a/nengo_sphinx_theme/version.py
+++ b/nengo_sphinx_theme/version.py
@@ -11,7 +11,7 @@
 tagged with the version.
 """
 
-version_info = (23, 11, 7)  # bones: ignore
+version_info = (24, 1, 15)  # bones: ignore
 
 name = "nengo-sphinx-theme"
 dev = 0
@@ -22,4 +22,4 @@
 if dev is not None:
     version += ".dev%d" % dev  # pragma: no cover
 
-copyright = "Copyright (c) 2019-2023 Applied Brain Research"
+copyright = "Copyright (c) 2019-2024 Applied Brain Research"
diff --git a/setup.py b/setup.py
index 690fdc1..851d158 100755
--- a/setup.py
+++ b/setup.py
@@ -28,11 +28,9 @@ def read(*filenames, **kwargs):
 version = runpy.run_path(str(root / "nengo_sphinx_theme" / "version.py"))["version"]
 
 install_req = [
-    "docutils<0.17",
-    "sphinx>=3.1.2,<4.0",
-    "sphinx-notfound-page>=0.5.0",
+    "sphinx>=7.2.6",
+    "sphinx-notfound-page>=1.0.0",
     "backoff>=1.10.0",
-    "jinja2<3.1.0",
 ]
 docs_req = [
     "jupyter",
@@ -77,8 +75,7 @@ def read(*filenames, **kwargs):
         "Operating System :: Microsoft :: Windows",
         "Operating System :: POSIX :: Linux",
         "Programming Language :: Python",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.9",
         "Topic :: Software Development",
     ],
 )