diff --git a/.github/workflows/test-suite.yml b/.github/workflows/test-suite.yml
index 4db2b475..516d3ae5 100644
--- a/.github/workflows/test-suite.yml
+++ b/.github/workflows/test-suite.yml
@@ -13,18 +13,20 @@ jobs:
     runs-on: "ubuntu-latest"
 
     strategy:
+      fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
 
     steps:
-      - uses: "actions/checkout@v4"
-      - uses: "actions/setup-python@v4"
+      - uses: "actions/checkout@v5"
+      - uses: "actions/setup-python@v6"
         with:
           python-version: "${{ matrix.python-version }}"
           allow-prereleases: true
       - name: "Install dependencies"
         run: "scripts/install"
       - name: "Run linting checks"
+        if: matrix.python-version != '3.8' && matrix.python-version != '3.9'
         run: "scripts/check"
       - name: "Build package & docs"
         run: "scripts/build"
diff --git a/requirements.txt b/requirements.txt
index 90219a8c..51af7903 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,8 +17,9 @@ coverage[toml]==7.5.4
 ruff==0.5.0
 mypy==1.10.1
 trio-typing==0.10.0
+pycparser==2.23 ; python_version >= "3.14"
 pytest==8.2.2
-pytest-httpbin==2.0.0
+pytest-httpbin==2.1.0
 pytest-trio==0.8.0
 werkzeug<3.1  # See: https://github.com/psf/httpbin/issues/35
 
@@ -26,5 +27,7 @@ werkzeug<3.1  # See: https://github.com/psf/httpbin/issues/35
 uvicorn==0.30.1
 aiohttp==3.10.2
 urllib3==2.2.2
-matplotlib==3.7.5
+matplotlib==3.7.5 ; python_version < "3.10"
+matplotlib==3.10.7 ; python_version >= "3.10"
 pyinstrument==4.6.2
+
diff --git a/tests/benchmark/client.py b/tests/benchmark/client.py
index d07802b0..b5afe759 100644
--- a/tests/benchmark/client.py
+++ b/tests/benchmark/client.py
@@ -7,10 +7,10 @@
 from typing import Any, Callable, Coroutine, Iterator, List
 
 import aiohttp
-import matplotlib.pyplot as plt  # type: ignore[import-untyped]
+import matplotlib.pyplot as plt
 import pyinstrument
 import urllib3
-from matplotlib.axes import Axes  # type: ignore[import-untyped]
+from matplotlib.axes import Axes
 
 import httpcore