diff --git a/.github/workflows/ruff.yaml b/.github/workflows/ruff.yaml
index 488ba2c..3fffef0 100644
--- a/.github/workflows/ruff.yaml
+++ b/.github/workflows/ruff.yaml
@@ -6,9 +6,9 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7
       - name: Install dependencies
         run: uv tool install ruff
       # Update output format to enable automatic inline annotations.