diff --git a/.github/workflows/check-ocaml.yml b/.github/workflows/check-ocaml.yml
index 21e45f8..40a9662 100644
--- a/.github/workflows/check-ocaml.yml
+++ b/.github/workflows/check-ocaml.yml
@@ -23,7 +23,7 @@ jobs:
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
             flake-registry =  https://raw.githubusercontent.com/akirak/flake-pins/master/registry.json
 
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: akirak
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'