diff --git a/.github/workflows/mix_test.yml b/.github/workflows/mix_test.yml
index e59bd6c..e3e179c 100644
--- a/.github/workflows/mix_test.yml
+++ b/.github/workflows/mix_test.yml
@@ -20,7 +20,7 @@ jobs:
     name: mix test
     steps:
       - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v17
+      - uses: cachix/install-nix-action@v26
       - uses: cachix/cachix-action@v10
         with:
           name: jechol