diff --git a/.github/workflows/stdlib-changes.yml b/.github/workflows/stdlib-changes.yml
index 524ceff..409a9b8 100644
--- a/.github/workflows/stdlib-changes.yml
+++ b/.github/workflows/stdlib-changes.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@v25
+    - uses: cachix/install-nix-action@v26
     - run: tools/sym-dump-all
     - uses: stefanzweifel/git-auto-commit-action@v5
       with: