diff --git a/.github/workflows/check-flake.yml b/.github/workflows/check-flake.yml
index 05784336..c8d31d30 100644
--- a/.github/workflows/check-flake.yml
+++ b/.github/workflows/check-flake.yml
@@ -18,7 +18,7 @@ jobs:
 
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: DeterminateSystems/nix-installer-action@ef8a148080ab6020fd15196c2084a2eea5ff2d25 # v22
-      - uses: DeterminateSystems/magic-nix-cache-action@908b263ff629f4cc17666315b7fd3ec127c6244d # v14
+      - uses: DeterminateSystems/magic-nix-cache-action@84c0677f58dcedf3b91f8223ce36a9ea5b3c84b7 # v15
         with:
           use-flakehub: false
       - name: Check Nix flake inputs
diff --git a/.github/workflows/update-flake-dependencies.yml b/.github/workflows/update-flake-dependencies.yml
index fb9e105a..952f293f 100644
--- a/.github/workflows/update-flake-dependencies.yml
+++ b/.github/workflows/update-flake-dependencies.yml
@@ -24,7 +24,7 @@ jobs:
         with:
           token: ${{ steps.app-token.outputs.token }}
       - uses: DeterminateSystems/nix-installer-action@ef8a148080ab6020fd15196c2084a2eea5ff2d25 # v22
-      - uses: DeterminateSystems/magic-nix-cache-action@908b263ff629f4cc17666315b7fd3ec127c6244d # v14
+      - uses: DeterminateSystems/magic-nix-cache-action@84c0677f58dcedf3b91f8223ce36a9ea5b3c84b7 # v15
         with:
           use-flakehub: false
       - name: Update flake.lock and create signed commit with flake.lock changes