diff --git a/.github/workflows/flake.yml b/.github/workflows/flake.yml
index 484ab4a..f7d0e75 100644
--- a/.github/workflows/flake.yml
+++ b/.github/workflows/flake.yml
@@ -29,7 +29,7 @@ jobs:
           token: ${{ steps.token.outputs.token }}
 
       - name: Install nix
-        uses: cachix/install-nix-action@0b0e072294b088b73964f1d72dfdac0951439dbd # v31
+        uses: cachix/install-nix-action@4e002c8ec80594ecd40e759629461e26c8abed15 # v31
 
       - name: Update flake
         run: nix flake update