diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index c7314896..15e3492c 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@v24
-      - uses: cachix/cachix-action@v12
+      - uses: cachix/cachix-action@v13
         with:
           name: numtide
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 2594aeb1..4d91b6a0 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -19,7 +19,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v24
-      - uses: cachix/cachix-action@v12
+      - uses: cachix/cachix-action@v13
         with:
           name: numtide
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'