diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e684961..f26c1ad 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,7 +35,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Setup Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
       - env:
           GH_TOKEN: ${{ secrets.GH_TOKEN }}
         name: Install dependencies
@@ -100,7 +100,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Setup Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
       - env:
           GH_TOKEN: ${{ secrets.GH_TOKEN }}
         name: Install dependencies