diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 169c23f..c7e5fa0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
     steps:
     - name: Checkout working copy
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: ruff check
       uses: chartboost/ruff-action@v1
     - name: ruff format
@@ -27,9 +27,9 @@ jobs:
       with:
         args: format --diff
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
-        python-version: "3.11"
+        python-version: "3.x"
     - name: Install mypy
       run: |
         python -mpip install --upgrade pip
@@ -44,13 +44,13 @@ jobs:
 
     steps:
     - name: Checkout working copy
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: true
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
-        python-version: "3.11"
+        python-version: "3.x"
     - name: Install dependency
       run: |
         python -mpip install --upgrade pip
@@ -59,14 +59,14 @@ jobs:
       run: |
         python -mbuild
     - name: Upload sdist
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: sdist
         path: dist/*.tar.gz
         retention-days: 1
 
     - name: Upload wheel
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: wheel
         path: dist/*.whl
@@ -94,6 +94,9 @@ jobs:
           - "pypy-3.9"
           - "pypy-3.10"
           # - "pypy-3.11"
+          # don't enable graal because it's slower than even pypy and
+          # fails because oracle/graalpython#385
+          # - "graalpy-23"
         include:
           - source: sdist
             artifact: dist/*.tar.gz
@@ -101,28 +104,37 @@ jobs:
             artifact: dist/*.whl
     steps:
     - name: Checkout working copy
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: true
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
         allow-prereleases: true
     - name: Install test dependencies
       run: |
         python -mpip install --upgrade pip
-        # if binary wheels are not available for the current package install libyaml
-        # NB: cyaml is outright broken on pypy so exclude that
+        # cyaml is outright broken on pypy
         if ! ${{ startsWith(matrix.python-version, 'pypy-') }}; then
+            # if binary wheels are not available for the current
+            # package install libyaml-dev so we can install pyyaml
+            # from source
             if ! pip download --only-binary pyyaml -rrequirements_dev.txt > /dev/null 2>&1; then
                 sudo apt install libyaml-dev
             fi
         fi
         python -mpip install pytest pyyaml
+
+        # re2 is basically impossible to install from source so don't
+        # bother, and suppress installation failure so the test does
+        # not fail (re2 tests will just be skipped for versions /
+        # implementations for which google does not provide a binary
+        # wheel)
+        python -mpip install --only-binary :all: google-re2 || true
     - name: download ${{ matrix.source }} artifact
       if: matrix.artifact
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: ${{ matrix.source }}
         path: dist/
@@ -130,4 +142,4 @@ jobs:
       run: |
         pip install ${{ matrix.artifact || '.' }}
     - name: run tests
-      run: pytest -v -Werror -Wignore::ImportWarning --doctest-glob="*.rst"
+      run: pytest -v -Werror -Wignore::ImportWarning --doctest-glob="*.rst" -ra
diff --git a/tests/test_core.py b/tests/test_core.py
index 5d8eca8..78a19e1 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -1,7 +1,6 @@
 """Tests UAP-Python using the UAP-core test suite
 """
 
-import contextlib
 import dataclasses
 import logging
 import pathlib
@@ -63,9 +62,15 @@
         id="lru",
     ),
 ]
-with contextlib.suppress(ImportError):
+try:
     from ua_parser import re2
-
+except ImportError:
+    PARSERS.append(
+        pytest.param(
+            None, id="re2", marks=pytest.mark.skip(reason="re2 parser not available")
+        )
+    )
+else:
     PARSERS.append(pytest.param(Parser(re2.Resolver(load_builtins())), id="re2"))
 
 UA_FIELDS = {f.name for f in dataclasses.fields(UserAgent)}
diff --git a/tox.ini b/tox.ini
index 4a2cb16..bbb0a84 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,7 +23,7 @@ deps =
 commands =
     pytest -Werror --doctest-glob="*.rst" {posargs}
 
-[testenv:pypy3.{8,9,10},py312]
+[testenv:pypy3.{8,9,10}]
 deps =
      pytest
      pyyaml