diff --git a/.github/workflows/pur.yml b/.github/workflows/pur.yml
index e4511e7c..99c7796b 100644
--- a/.github/workflows/pur.yml
+++ b/.github/workflows/pur.yml
@@ -35,11 +35,13 @@ jobs:
           pur -r requirements.txt
           pur -r requirements-dev.txt
           pur --skip csirtgsdk -r requirements-output.txt
+          pur -r docs/requirements.txt
       - name: pip install
         run: |
           pip install --upgrade -r requirements.txt
           pip install --upgrade -r requirements-dev.txt
           pip install --upgrade -r requirements-output.txt
+          pip install --upgrade -r docs/requirements.txt
       - name: pip check
         run: |
           pip check
diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 10fba128..212d60ef 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11.0-beta.1", "pypy-3.8"]
+        python-version: ["3.8", "3.9", "3.10", "3.11.0-beta.3", "pypy-3.8"]
     steps:
       - uses: actions/checkout@v1
       - name: Set up Python ${{ matrix.python-version }}
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 4e1fff81..92434ede 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
-Sphinx==5.0.1
+Sphinx==5.0.2
 sphinx-copybutton==0.5.0
 sphinx_rtd_theme==1.0.0
 readthedocs-sphinx-search==0.1.2
diff --git a/requirements-dev.txt b/requirements-dev.txt
index b91bc110..2e20c9c1 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -11,6 +11,7 @@ pyre-check==0.9.13; python_version>'3.8'
 pytype==2022.6.6; platform_python_implementation=='CPython' and python_version<'3.11'
 pyupgrade==2.34.0
 pyyaml==6.0
+readthedocs-sphinx-search==0.1.2
 setuptools==62.3.4
 sphinx-copybutton==0.5.0
 sphinx_rtd_theme==1.0.0