diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index dee930f89..93c49a44d 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.7", "3.10"]
+        python-version: ["3.8", "3.11"]
     steps:
       - name: Check out repository code
         uses: actions/checkout@v3
@@ -24,7 +24,7 @@ jobs:
           sudo apt-get install texlive-plain-generic inkscape texlive-xetex latexmk enchant-2
 
           # pandoc is not up to date in the ubuntu repos, so we install directly
-          wget https://github.com/jgm/pandoc/releases/download/2.14.2/pandoc-2.14.2-1-amd64.deb && sudo dpkg -i pandoc-2.14.2-1-amd64.deb
+          wget https://github.com/jgm/pandoc/releases/download/3.1.2/pandoc-3.1.2-1-amd64.deb && sudo dpkg -i pandoc-3.1.2-1-amd64.deb
 
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
       - name: Install
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index fe09c6d48..b7871616c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -23,12 +23,12 @@ jobs:
     strategy:
       matrix:
         os: ["ubuntu-20.04", "macos-latest", "windows-latest"]
-        python-version: ["3.7", "3.10"]
+        python-version: ["3.8", "3.11"]
         include:
           - os: "windows-latest"
-            python-version: "3.8"
-          - os: "ubuntu-20.04"
             python-version: "3.9"
+          - os: "ubuntu-20.04"
+            python-version: "3.10"
       fail-fast: false
     steps:
       - uses: actions/checkout@v3
@@ -56,6 +56,15 @@ jobs:
 
       - uses: jupyterlab/maintainer-tools/.github/actions/upload-coverage@v1
 
+  python312:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+        with:
+          python_version: "3.12"
+      - run: hatch run test:test
+
   coverage:
     runs-on: ubuntu-latest
     needs:
diff --git a/nbconvert/tests/base.py b/nbconvert/tests/base.py
index 9077faa96..e92dccf5b 100644
--- a/nbconvert/tests/base.py
+++ b/nbconvert/tests/base.py
@@ -126,6 +126,9 @@ def copy_files_to(self, copy_filenames, dest="."):
             files = glob.glob(os.path.join(files_path, pattern))
             assert files
             for match in files:
+                # Avoid copying the Julia file unless it is explicitly asked for.
+                if 'jl' in match and "jl" not in pattern:
+                    continue
                 shutil.copyfile(match, os.path.join(dest, os.path.basename(match)))
 
     def _get_files_path(self):
diff --git a/nbconvert/tests/test_nbconvertapp.py b/nbconvert/tests/test_nbconvertapp.py
index 45deb10fa..a197fec6b 100644
--- a/nbconvert/tests/test_nbconvertapp.py
+++ b/nbconvert/tests/test_nbconvertapp.py
@@ -8,6 +8,7 @@
 
 import nbformat
 import pytest
+from flaky import flaky  # type:ignore
 from traitlets.tests.utils import check_help_all_output
 
 from nbconvert.exporters import HTMLExporter
@@ -148,6 +149,7 @@ def test_filename_spaces(self):
             )
             assert os.path.isfile("notebook with spaces.pdf")
 
+    @flaky
     @pytest.mark.network
     @pytest.mark.skipif(not PYPPETEER_INSTALLED, reason="Pyppeeter not installed")
     def test_webpdf_with_chromium(self):
diff --git a/pyproject.toml b/pyproject.toml
index f5085c366..def037254 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["hatchling >=0.25"]
+requires = ["hatchling >=1.5"]
 build-backend = "hatchling.build"
 
 [project]
@@ -18,7 +18,7 @@ classifiers = [
     "Programming Language :: Python :: 3",
 ]
 urls = {Homepage = "https://jupyter.org"}
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 dependencies = [
     "beautifulsoup4",
     "bleach!=5.0.0",
@@ -65,6 +65,7 @@ test = [
     "ipykernel",
     "ipywidgets>=7",
     "pre-commit",
+    "flaky"
 ]
 serve = ["tornado>=6.1"]
 docs = [
@@ -163,6 +164,8 @@ filterwarnings = [
     "ignore:unclosed event loop:ResourceWarning",
     # From jupyter_core
     "module:Jupyter is migrating its paths to use standard platformdirs:DeprecationWarning",
+    # From dateutil
+    "ignore:.*Use timezone-aware objects to represent datetimes in UTC:DeprecationWarning",
 ]
 
 [tool.coverage.report]