diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index 48a8418f5..cdd360589 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@02a151ada4993995686f9ed4f1be7cfbb229e56f # v31
+      - uses: cachix/install-nix-action@d1ca217b388ee87b2507a9a93bf01368bde7cec2 # v31
 
       - uses: DeterminateSystems/update-flake-lock@v24
         with: