diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 594369c6dc7b..4ed88a88f2bb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -17,7 +17,7 @@ jobs:
           cache-dependency-glob: uv.lock
       - uses: actions/setup-python@v7
         with:
-          python-version: 3.14
+          python-version-file: pyproject.toml
           allow-prereleases: true
       - run: uv sync --group=test
       - name: Run tests
diff --git a/.github/workflows/directory_writer.yml b/.github/workflows/directory_writer.yml
index 8b34f97995a7..9df64222cd56 100644
--- a/.github/workflows/directory_writer.yml
+++ b/.github/workflows/directory_writer.yml
@@ -11,7 +11,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-python@v7
         with:
-          python-version: 3.14
+          python-version-file: pyproject.toml
           allow-prereleases: true
       - name: Write DIRECTORY.md
         run: |
diff --git a/.github/workflows/project_euler.yml b/.github/workflows/project_euler.yml
index 73afb2e71cab..06f865f0bcdf 100644
--- a/.github/workflows/project_euler.yml
+++ b/.github/workflows/project_euler.yml
@@ -25,7 +25,7 @@ jobs:
       - uses: astral-sh/setup-uv@v7
       - uses: actions/setup-python@v7
         with:
-          python-version: 3.14
+          python-version-file: pyproject.toml
           allow-prereleases: true
       - run: uv sync --group=euler-validate --group=test
       - run: uv run pytest --doctest-modules --cov-report=term-missing:skip-covered --cov=project_euler/ project_euler/
@@ -43,7 +43,7 @@ jobs:
       - uses: astral-sh/setup-uv@v7
       - uses: actions/setup-python@v7
         with:
-          python-version: 3.14
+          python-version-file: pyproject.toml
           allow-prereleases: true
       - run: uv sync --group=euler-validate --group=test
       - run: uv run pytest scripts/validate_solutions.py
diff --git a/.github/workflows/sphinx.yml b/.github/workflows/sphinx.yml
index 45a74099ff00..3828bea0eaf0 100644
--- a/.github/workflows/sphinx.yml
+++ b/.github/workflows/sphinx.yml
@@ -36,7 +36,7 @@ jobs:
       - uses: astral-sh/setup-uv@v7
       - uses: actions/setup-python@v7
         with:
-          python-version: 3.14
+          python-version-file: pyproject.toml
           allow-prereleases: true
       - run: uv sync --group=docs
       - uses: actions/configure-pages@v6
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 0a5f50751ce3..f884a38bf4cd 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,6 +18,11 @@ repos:
     hooks:
       - id: auto-walrus
 
+  - repo: https://github.com/astral-sh/uv-pre-commit
+    rev: 0.12.7
+    hooks:
+      - id: uv-lock
+
   - repo: https://github.com/astral-sh/ruff-pre-commit
     rev: v0.16.1
     hooks: