diff --git a/.github/workflows/flake-checker.yml b/.github/workflows/flake-checker.yml
index ee7dfb2..8c5a15c 100644
--- a/.github/workflows/flake-checker.yml
+++ b/.github/workflows/flake-checker.yml
@@ -17,5 +17,5 @@ jobs:
         with:
           fetch-depth: 0
       - uses: DeterminateSystems/nix-installer-action@v13
-      - uses: DeterminateSystems/magic-nix-cache-action@v7
+      - uses: DeterminateSystems/magic-nix-cache-action@v9
       - uses: DeterminateSystems/flake-checker-action@v8
diff --git a/.github/workflows/flake-updater.yml b/.github/workflows/flake-updater.yml
index e03ce4c..b4a2fe1 100644
--- a/.github/workflows/flake-updater.yml
+++ b/.github/workflows/flake-updater.yml
@@ -14,7 +14,7 @@ jobs:
         with:
           fetch-depth: 0
       - uses: DeterminateSystems/nix-installer-action@v13
-      - uses: DeterminateSystems/magic-nix-cache-action@v7
+      - uses: DeterminateSystems/magic-nix-cache-action@v9
       - uses: DeterminateSystems/update-flake-lock@v24
         with:
           pr-title: "chore: update flake.lock"