diff --git a/.github/workflows/python_ci.yml b/.github/workflows/python_ci.yml
index 2317793..67fc281 100644
--- a/.github/workflows/python_ci.yml
+++ b/.github/workflows/python_ci.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: "windows-2019"
     continue-on-error: ${{ matrix.config.experimental }}
     env:
-      USING_COVERAGE: '3.6,3.7,3.8,3.9,3.10,3.11,3.12,3.13.0-beta.2,pypy-3.6,pypy-3.7,pypy-3.8,pypy-3.9'
+      USING_COVERAGE: '3.6,3.7,3.8,3.9,3.10,3.11,3.12,3.13.0-beta.3,pypy-3.6,pypy-3.7,pypy-3.8,pypy-3.9'
 
     strategy:
       fail-fast: False
@@ -35,7 +35,7 @@ jobs:
           - {python-version: "3.10", testenvs: "py310,build", experimental: False}
           - {python-version: "3.11", testenvs: "py311,build", experimental: False}
           - {python-version: "3.12", testenvs: "py312,build", experimental: False}
-          - {python-version: "3.13.0-beta.2", testenvs: "py313-dev,build", experimental: True}
+          - {python-version: "3.13.0-beta.3", testenvs: "py313-dev,build", experimental: True}
           - {python-version: "pypy-3.6", testenvs: "pypy36", experimental: False}
           - {python-version: "pypy-3.7", testenvs: "pypy37,build", experimental: False}
           - {python-version: "pypy-3.8", testenvs: "pypy38,build", experimental: False}
diff --git a/.github/workflows/python_ci_linux.yml b/.github/workflows/python_ci_linux.yml
index f7dc2d5..90c5449 100644
--- a/.github/workflows/python_ci_linux.yml
+++ b/.github/workflows/python_ci_linux.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: "ubuntu-20.04"
     continue-on-error: ${{ matrix.config.experimental }}
     env:
-      USING_COVERAGE: '3.6,3.7,3.8,3.9,3.10,3.11,3.12,3.13.0-beta.2,pypy-3.6,pypy-3.7,pypy-3.8,pypy-3.9'
+      USING_COVERAGE: '3.6,3.7,3.8,3.9,3.10,3.11,3.12,3.13.0-beta.3,pypy-3.6,pypy-3.7,pypy-3.8,pypy-3.9'
 
     strategy:
       fail-fast: False
@@ -36,7 +36,7 @@ jobs:
           - {python-version: "3.10", testenvs: "py310,build", experimental: False}
           - {python-version: "3.11", testenvs: "py311,build", experimental: False}
           - {python-version: "3.12", testenvs: "py312,build", experimental: False}
-          - {python-version: "3.13.0-beta.2", testenvs: "py313-dev,build", experimental: True}
+          - {python-version: "3.13.0-beta.3", testenvs: "py313-dev,build", experimental: True}
           - {python-version: "pypy-3.6", testenvs: "pypy36,build", experimental: False}
           - {python-version: "pypy-3.7", testenvs: "pypy37,build", experimental: False}
           - {python-version: "pypy-3.8", testenvs: "pypy38,build", experimental: False}
diff --git a/.github/workflows/python_ci_macos.yml b/.github/workflows/python_ci_macos.yml
index 5b21ce2..3e12f15 100644
--- a/.github/workflows/python_ci_macos.yml
+++ b/.github/workflows/python_ci_macos.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: "macos-13"
     continue-on-error: ${{ matrix.config.experimental }}
     env:
-      USING_COVERAGE: '3.6,3.7,3.8,3.9,3.10,3.11,3.12,3.13.0-beta.2,pypy-3.7,pypy-3.8,pypy-3.9'
+      USING_COVERAGE: '3.6,3.7,3.8,3.9,3.10,3.11,3.12,3.13.0-beta.3,pypy-3.7,pypy-3.8,pypy-3.9'
 
     strategy:
       fail-fast: False
@@ -35,7 +35,7 @@ jobs:
           - {python-version: "3.10", testenvs: "py310,build", experimental: False}
           - {python-version: "3.11", testenvs: "py311,build", experimental: False}
           - {python-version: "3.12", testenvs: "py312,build", experimental: False}
-          - {python-version: "3.13.0-beta.2", testenvs: "py313-dev,build", experimental: True}
+          - {python-version: "3.13.0-beta.3", testenvs: "py313-dev,build", experimental: True}
           - {python-version: "pypy-3.7", testenvs: "pypy37,build", experimental: False}
           - {python-version: "pypy-3.8", testenvs: "pypy38,build", experimental: False}
           - {python-version: "pypy-3.9", testenvs: "pypy39,build", experimental: True}
diff --git a/doc-source/conf.py b/doc-source/conf.py
index 712901c..04ab930 100644
--- a/doc-source/conf.py
+++ b/doc-source/conf.py
@@ -71,13 +71,28 @@
 		}
 
 
+# Fix for pathlib issue with sphinxemoji on Python 3.9 and Sphinx 4.x
+def copy_asset_files(app, exc):
+	# 3rd party
+	from domdf_python_tools.compat import importlib_resources
+	from sphinx.util.fileutil import copy_asset
+
+	if exc:
+		return
+
+	asset_files = ["twemoji.js", "twemoji.css"]
+	for path in asset_files:
+		path_str = os.fspath(importlib_resources.files("sphinxemoji") / path)
+		copy_asset(path_str, os.path.join(app.outdir, "_static"))
+
+
 def setup(app):
 	# 3rd party
 	from sphinx_toolbox.latex import better_header_layout
 	from sphinxemoji import sphinxemoji
 
 	app.connect("config-inited", lambda app, config: better_header_layout(config))
-	app.connect("build-finished", sphinxemoji.copy_asset_files)
+	app.connect("build-finished", copy_asset_files)
 	app.add_js_file("https://unpkg.com/twemoji@latest/dist/twemoji.min.js")
 	app.add_js_file("twemoji.js")
 	app.add_css_file("twemoji.css")
diff --git a/doc-source/requirements.txt b/doc-source/requirements.txt
index 8e55ace..32cf07b 100644
--- a/doc-source/requirements.txt
+++ b/doc-source/requirements.txt
@@ -15,7 +15,13 @@ sphinx-prompt>=1.1.0
 sphinx-pyproject>=0.1.0
 sphinx-tabs>=1.1.13
 sphinx-toolbox>=3.5.0
+sphinxcontrib-applehelp==1.0.4
+sphinxcontrib-devhelp==1.0.2
+sphinxcontrib-htmlhelp==2.0.1
 sphinxcontrib-httpdomain>=1.7.0
+sphinxcontrib-jsmath==1.0.1
+sphinxcontrib-qthelp==1.0.3
+sphinxcontrib-serializinghtml==1.1.5
 sphinxemoji>=0.2.0
 tabulate>=0.8.7
 toctree-plus>=0.6.1