diff --git a/.github/workflows/pre-commit.yaml b/.github/workflows/pre-commit.yaml
index 13e4b16..e54461c 100644
--- a/.github/workflows/pre-commit.yaml
+++ b/.github/workflows/pre-commit.yaml
@@ -20,6 +20,6 @@ jobs:
         with:
           path: ~/.cache/pre-commit
           key: pre-commit|${{ hashFiles('pyproject.toml', '.pre-commit-config.yaml') }}
-      - run: uv run --group pre-commit pre-commit run --show-diff-on-failure --color=always --all-files
+      - run: uv run --locked --group pre-commit pre-commit run --show-diff-on-failure --color=always --all-files
       - uses: pre-commit-ci/lite-action@5d6cc0eb514c891a40562a58a8e71576c5c7fb43 # v1.1.0
         if: ${{ !cancelled() }}
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 4a06a7c..db9adb1 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -23,4 +23,4 @@ jobs:
         with:
           path: ./.mypy_cache
           key: mypy|${{ hashFiles('pyproject.toml') }}
-      - run: uv run tox run -e typing
+      - run: uv run --locked tox run -e typing