diff --git a/.github/workflows/nix-build-and-cache.yml b/.github/workflows/nix-build-and-cache.yml
index a50c00d9..f599b0eb 100644
--- a/.github/workflows/nix-build-and-cache.yml
+++ b/.github/workflows/nix-build-and-cache.yml
@@ -37,7 +37,7 @@ jobs:
     - uses: cachix/cachix-action@v15
       with:
         name: mrjones2014-dotfiles
-        authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+        signingKey: '${{ secrets.CACHIX_AUTH_TOKEN }}'
 
     - name: build all definitions
       run: nix run github:Mic92/nix-fast-build -L -- --skip-cached --no-download --no-nom --eval-workers 1 --eval-max-memory-size 2048 --flake .#checks.${{ matrix.system }}
diff --git a/flake.lock b/flake.lock
index 61a60a0f..238fe280 100644
--- a/flake.lock
+++ b/flake.lock
@@ -319,24 +319,6 @@
         "type": "github"
       }
     },
-    "flake-utils_5": {
-      "inputs": {
-        "systems": "systems_6"
-      },
-      "locked": {
-        "lastModified": 1731533236,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "freetype2": {
       "flake": false,
       "locked": {
@@ -761,7 +743,6 @@
         "agenix": "agenix",
         "arkenfox": "arkenfox",
         "catppuccin": "catppuccin",
-        "flake-utils": "flake-utils_4",
         "home-manager": "home-manager_3",
         "neovim-nightly-overlay": "neovim-nightly-overlay",
         "nixpkgs": "nixpkgs_3",
@@ -865,21 +846,6 @@
         "type": "github"
       }
     },
-    "systems_6": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    },
     "tokyonight": {
       "inputs": {
         "tokyonight": "tokyonight_2",
@@ -954,7 +920,7 @@
     },
     "wezterm-nightly": {
       "inputs": {
-        "flake-utils": "flake-utils_5",
+        "flake-utils": "flake-utils_4",
         "freetype2": "freetype2",
         "harfbuzz": "harfbuzz",
         "libpng": "libpng",