diff --git a/.github/workflows/deploy-latest.yml b/.github/workflows/deploy-latest.yml
index 4746aa07..8cd9dcda 100644
--- a/.github/workflows/deploy-latest.yml
+++ b/.github/workflows/deploy-latest.yml
@@ -18,7 +18,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
-        python-version: "3.9"
+        python-version: "3.11"
     - uses: actions/cache@v3
       name: Configure pip caching
       with:
diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
index 6bf72f9d..722e5c68 100644
--- a/.github/workflows/spellcheck.yml
+++ b/.github/workflows/spellcheck.yml
@@ -13,7 +13,7 @@ jobs:
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v2
       with:
-        python-version: 3.9
+        python-version: 3.11
     - uses: actions/cache@v2
       name: Configure pip caching
       with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4eab1fdb..8cbbb572 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -29,7 +29,7 @@ jobs:
         (cd tests && gcc ext.c -fPIC -shared -o ext.so)
     - name: Install dependencies
       run: |
-        pip install -e '.[test,docs]'
+        pip install -e '.[test]'
         pip freeze
     - name: Run tests
       run: |
@@ -37,10 +37,16 @@ jobs:
         pytest -m "serial"
         # And the test that exceeds a localhost HTTPS server
         tests/test_datasette_https_server.sh
+    - name: Install docs dependencies on Python 3.9+
+      if: matrix.python-version != '3.8'
+      run: |
+        pip install -e '.[docs]'
     - name: Check if cog needs to be run
+      if: matrix.python-version != '3.8'
       run: |
         cog --check docs/*.rst
     - name: Check if blacken-docs needs to be run
+      if: matrix.python-version != '3.8'
       run: |
         # This fails on syntax errors, or a diff was applied
         blacken-docs -l 60 docs/*.rst
diff --git a/setup.py b/setup.py
index 3a105523..35c9b68b 100644
--- a/setup.py
+++ b/setup.py
@@ -69,8 +69,8 @@ setup(
     setup_requires=["pytest-runner"],
     extras_require={
         "docs": [
-            "Sphinx==7.1.2",
-            "furo==2023.7.26",
+            "Sphinx==7.2.4",
+            "furo==2023.8.19",
             "sphinx-autobuild",
             "codespell>=2.2.5",
             "blacken-docs",
@@ -84,7 +84,7 @@ setup(
             "pytest-asyncio>=0.17",
             "beautifulsoup4>=4.8.1",
             "black==23.7.0",
-            "blacken-docs==1.15.0",
+            "blacken-docs==1.16.0",
             "pytest-timeout>=1.4.2",
             "trustme>=0.7",
             "cogapp>=3.3.0",