diff --git a/.github/workflows/format.yaml b/.github/workflows/format.yaml
index 8f22d16..967d8e2 100644
--- a/.github/workflows/format.yaml
+++ b/.github/workflows/format.yaml
@@ -20,7 +20,7 @@ jobs:
         with:
           determinate: false
       - name: Setup Attic cache
-        uses: ryanccn/attic-action@v0
+        uses: ryanccn/attic-action@7fbafba3978e86e585cb68a82c08b30f3672b62d # v0
         with:
           endpoint: https://attic.comni.pl
           cache: aspulse_dotfiles
@@ -34,7 +34,7 @@ jobs:
         with:
           determinate: false
       - name: Setup Attic cache
-        uses: ryanccn/attic-action@v0
+        uses: ryanccn/attic-action@7fbafba3978e86e585cb68a82c08b30f3672b62d # v0
         with:
           endpoint: https://attic.comni.pl
           cache: aspulse_dotfiles