diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1b906ca8..f95d91f0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: DeterminateSystems/magic-nix-cache-action@v3
+      - uses: DeterminateSystems/magic-nix-cache-action@v4
       - uses: DeterminateSystems/nix-installer-action@v10
         with:
           extra-conf: |
diff --git a/.github/workflows/iso.yml b/.github/workflows/iso.yml
index 7ac445e8..12a514c7 100644
--- a/.github/workflows/iso.yml
+++ b/.github/workflows/iso.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: DeterminateSystems/magic-nix-cache-action@v3
+      - uses: DeterminateSystems/magic-nix-cache-action@v4
       - uses: DeterminateSystems/nix-installer-action@v10
       - name: Build ISO
         run: |
diff --git a/.github/workflows/site.yml b/.github/workflows/site.yml
index 3c578b53..cc982733 100644
--- a/.github/workflows/site.yml
+++ b/.github/workflows/site.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: DeterminateSystems/magic-nix-cache-action@v3
+      - uses: DeterminateSystems/magic-nix-cache-action@v4
       - uses: DeterminateSystems/nix-installer-action@v10
       - env:
           NIXPKGS_ALLOW_UNFREE: "1"