diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 945ec2d..0fe7419 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,12 +30,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - run: sudo apt install gettext -y
+      - uses: astral-sh/setup-uv@v7
         with:
           python-version: ${{ matrix.python-version }}
-      - run: sudo apt install gettext -y
-      - run: python -m pip install .[test]
-      - run: python -m pytest
+      - run: uv run --no-dev --group=test pytest
       - uses: codecov/codecov-action@v6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.gitignore b/.gitignore
index 1fd15d0..cbe3654 100644
--- a/.gitignore
+++ b/.gitignore
@@ -162,3 +162,6 @@ cython_debug/
 
 # flit-scm
 _version.py
+
+# UV
+uv.lock
diff --git a/pyproject.toml b/pyproject.toml
index 4964d5f..990b513 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,19 +31,25 @@ classifiers = [
 ]
 requires-python = ">=3.10"
 dependencies = [
-    "flit-core~=3.5",
+    "flit-core~=3.12",
 ]
 
 [project.optional-dependencies]
+scm = [
+  "flit-scm",
+]
+
+[dependency-groups]
+dev = [
+  { include-group = "test" },
+]
 test = [
   "pytest",
   "pytest-cov",
   "flit-scm",
   "build",
   "wheel",
-]
-scm = [
-  "flit-scm",
+  "pip",
 ]
 
 [project.urls]
diff --git a/tests/conftest.py b/tests/conftest.py
index 5165822..42d6a3c 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -5,6 +5,8 @@
 
 import pytest
 
+PACKAGE_DIR = Path(__file__).parent.parent
+
 
 @pytest.fixture
 def package():
@@ -17,7 +19,7 @@ def package():
             'version = "0.1.0"\n'
             'description = "A package"\n'
             "[build-system]\n"
-            'requires = ["flit_core >=3.0.0,<4"]\n'
+            f'requires = ["flit_core >=3.0.0,<4", "{PACKAGE_DIR}"]\n'
             'build-backend = "flit_gettext.core"\n'
         )
         (temp_dir / "package").mkdir(parents=True)
@@ -38,7 +40,7 @@ def package_scm():
             'description = "A package"\n'
             'dynamic = ["version"]\n'
             "[build-system]\n"
-            'requires = ["flit_core >=3.0.0,<4", "flit_scm"]\n'
+            f'requires = ["flit_core >=3.0.0,<4", "flit_scm", "{PACKAGE_DIR}"]\n'
             'build-backend = "flit_gettext.scm"\n'
             "[tool.setuptools_scm]\n"
             'write_to = "package/_version.py"\n'