diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index fb132cc..3dd28a3 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -18,7 +18,7 @@ jobs:
         steps:
             - uses: actions/checkout@v4
             - uses: cachix/install-nix-action@v26
-            - uses: cachix/cachix-action@v14
+            - uses: cachix/cachix-action@v15
               with:
                   name: numtide
                   authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index d6ff466..80d1723 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -29,7 +29,7 @@ jobs:
         steps:
             - uses: actions/checkout@v4
             - uses: cachix/install-nix-action@v26
-            - uses: cachix/cachix-action@v14
+            - uses: cachix/cachix-action@v15
               with:
                   name: numtide
                   authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"