diff --git a/.github/workflows/action-build.yaml b/.github/workflows/action-build.yaml
index 046731f..672a9a1 100644
--- a/.github/workflows/action-build.yaml
+++ b/.github/workflows/action-build.yaml
@@ -37,7 +37,7 @@ jobs:
         with:
           lix-on-tmpfs: true
       - name: Set up Magic Nix cache
-        uses: DeterminateSystems/magic-nix-cache-action@6221693898146dc97e38ad0e013488a16477a4c4 # v9
+        uses: DeterminateSystems/magic-nix-cache-action@565684385bcd71bad329742eefe8d12f2e765b39 # v13
         with:
           diagnostic-endpoint: ""
           use-flakehub: false
diff --git a/.github/workflows/treefmt.yaml b/.github/workflows/treefmt.yaml
index f9fcb93..2d52c8b 100644
--- a/.github/workflows/treefmt.yaml
+++ b/.github/workflows/treefmt.yaml
@@ -24,7 +24,7 @@ jobs:
         with:
           lix-on-tmpfs: true
       - name: Set up Magic Nix cache
-        uses: DeterminateSystems/magic-nix-cache-action@6221693898146dc97e38ad0e013488a16477a4c4 # v9
+        uses: DeterminateSystems/magic-nix-cache-action@565684385bcd71bad329742eefe8d12f2e765b39 # v13
         with:
           diagnostic-endpoint: ""
           use-flakehub: false