diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index f4b1c4f5d..62852171b 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@754537aaedb35f72ab11a60cc162c49ef3016495 # v31
+      - uses: cachix/install-nix-action@526118121621777ccd86f79b04685a9319637641 # v31
 
       - uses: DeterminateSystems/update-flake-lock@v24
         with: