diff --git a/.github/workflows/build-system.yml b/.github/workflows/build-system.yml
index 73945ab..e60310d 100644
--- a/.github/workflows/build-system.yml
+++ b/.github/workflows/build-system.yml
@@ -5,18 +5,20 @@ on:
 
 jobs:
   build-x86_64-demeter:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     permissions:
       contents: read
       id-token: write
     steps:
       - name: Free Disk Space (Ubuntu)
-        uses: jlumbroso/free-disk-space@v1.3.1
+        uses: Jayllyz/free-disk-space@perf/use-rmz
       - uses: actions/checkout@v4
       - name: Check Nix flake Nixpkgs inputs
         uses: DeterminateSystems/flake-checker-action@main
       - uses: DeterminateSystems/nix-installer-action@main
-      - name: Build select system configurations.
+        with:
+          github-token: ${{ secrets.GH_TOKEN_FOR_UPDATES }}
+      - name: Build demeter
         run: |
           # nix flake check --all-systems
           nix build .#nixosConfigurations.demeter.config.system.build.toplevel
@@ -27,12 +29,14 @@ jobs:
       id-token: write
     steps:
       - name: Free Disk Space (Ubuntu)
-        uses: jlumbroso/free-disk-space@v1.3.1
+        uses: Jayllyz/free-disk-space@perf/use-rmz
       - uses: actions/checkout@v4
       - name: Check Nix flake Nixpkgs inputs
         uses: DeterminateSystems/flake-checker-action@main
       - uses: DeterminateSystems/nix-installer-action@main
-      - name: Build select system configurations.
+        with:
+          github-token: ${{ secrets.GH_TOKEN_FOR_UPDATES }}
+      - name: Build callisto
         run: |
           # nix flake check --all-systems
           nix build .#nixosConfigurations.callisto.config.system.build.toplevel