diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c32a9ab..a279af9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,5 +37,5 @@ jobs:
           key: ${{ runner.os }}-node-${{ hashFiles('.nvmrc', 'package.json', 'package-lock.json') }}
       - name: Run tests
         run: |
-          pip install $(grep "^tox==" requirements/local.txt)
+          pip install $(grep -E "^(tox|tox-uv)==" requirements/local.txt)
           tox -e ${{ matrix.testenv }}
diff --git a/requirements/local.txt b/requirements/local.txt
index b3583ee..9303029 100644
--- a/requirements/local.txt
+++ b/requirements/local.txt
@@ -1,3 +1,4 @@
 -r testing.txt
 
-tox==4.15.1
+tox==4.23.2
+tox-uv==1.16.0
diff --git a/{{cookiecutter.project_slug}}/.github/workflows/ci.yml b/{{cookiecutter.project_slug}}/.github/workflows/ci.yml
index c3bfdd1..5feceb9 100644
--- a/{{cookiecutter.project_slug}}/.github/workflows/ci.yml
+++ b/{{cookiecutter.project_slug}}/.github/workflows/ci.yml
@@ -32,5 +32,5 @@ jobs:
           key: ${{ runner.os }}-node-${{ hashFiles('.nvmrc', 'package.json', 'package-lock.json') }}
       - name: Run tests
         run: |
-          pip install $(grep "^tox==" requirements/local.txt)
+          pip install $(grep -E "^(tox|tox-uv)==" requirements/local.txt)
           tox
diff --git a/{{cookiecutter.project_slug}}/requirements/local.txt b/{{cookiecutter.project_slug}}/requirements/local.txt
index 144eafd..e8a0301 100644
--- a/{{cookiecutter.project_slug}}/requirements/local.txt
+++ b/{{cookiecutter.project_slug}}/requirements/local.txt
@@ -2,3 +2,4 @@
 
 ipdb==0.13.13
 tox==4.23.2
+tox-uv==1.16.0
diff --git a/{{cookiecutter.project_slug}}/requirements/testing.txt b/{{cookiecutter.project_slug}}/requirements/testing.txt
index 38976f4..bd3a7f3 100644
--- a/{{cookiecutter.project_slug}}/requirements/testing.txt
+++ b/{{cookiecutter.project_slug}}/requirements/testing.txt
@@ -3,7 +3,6 @@
 black==24.10.0
 coverage==7.6.4
 flake8==7.1.1
-Flask-WebTest==0.1.6
 isort==5.13.2
 pipdeptree==2.23.4
 pytest-flask==1.3.0
diff --git a/{{cookiecutter.project_slug}}/tests/conftest.py b/{{cookiecutter.project_slug}}/tests/conftest.py
index a576754..504ef74 100644
--- a/{{cookiecutter.project_slug}}/tests/conftest.py
+++ b/{{cookiecutter.project_slug}}/tests/conftest.py
@@ -1,9 +1,8 @@
 import pytest
-from flask_webtest import TestApp
 
-from project import app
+import project
 
 
 @pytest.fixture
-def flask_webtest(request):
-    request.cls.app = TestApp(app)
+def app():
+    return project.app
diff --git a/{{cookiecutter.project_slug}}/tests/test_views.py b/{{cookiecutter.project_slug}}/tests/test_views.py
index d13e98b..8ccf437 100644
--- a/{{cookiecutter.project_slug}}/tests/test_views.py
+++ b/{{cookiecutter.project_slug}}/tests/test_views.py
@@ -3,10 +3,10 @@
 import pytest
 
 
-@pytest.mark.usefixtures("flask_webtest")
+@pytest.mark.usefixtures("client_class")
 class TestViews(unittest.TestCase):
     def test_root(self):
-        response = self.app.get("/")
+        response = self.client.get("/")
 
-        assert response.status_int == 200
-        assert "Hello, world!" in response
+        assert response.status_code == 200
+        assert "Hello, world!" in response.get_data(as_text=True)