diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index f54c09528..48a8418f5 100644
--- a/.github/workflows/update-flake.yml
+++ b/.github/workflows/update-flake.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@91a071959513ca103b54280ac0bef5b825791d4d # v31
+      - uses: cachix/install-nix-action@02a151ada4993995686f9ed4f1be7cfbb229e56f # v31
 
       - uses: DeterminateSystems/update-flake-lock@v24
         with: