diff --git a/.github/workflows/flake-health-checks.yml b/.github/workflows/flake-health-checks.yml
index fdbe490..b8eb3fd 100644
--- a/.github/workflows/flake-health-checks.yml
+++ b/.github/workflows/flake-health-checks.yml
@@ -10,7 +10,15 @@ jobs:
         name: "Perform Nix flake checks"
         runs-on: ubuntu-latest
         steps:
-            - uses: DeterminateSystems/nix-installer-action@main
+            - name: Get Latest Determinate Nix Installer binary
+              id: latest-installer
+              uses: sigyl-actions/gitea-action-get-latest-release@main
+              with:
+                repository: ahuston-0/determinate-nix-mirror
+            - name: Install nix
+              uses: https://github.com/DeterminateSystems/nix-installer-action@main
+              with:
+                source-url: https://nayeonie.com/ahuston-0/determinate-nix-mirror/releases/download/${{ steps.latest-installer.outputs.release }}/nix-installer-x86_64-linux
             - name: Setup Attic cache
               uses: ryanccn/attic-action@v0
               with:
diff --git a/.github/workflows/nix-fmt.yml b/.github/workflows/nix-fmt.yml
index 6ef5915..bfbd886 100644
--- a/.github/workflows/nix-fmt.yml
+++ b/.github/workflows/nix-fmt.yml
@@ -10,7 +10,15 @@ jobs:
         name: "Perform Nix format checks"
         runs-on: ubuntu-latest
         steps:
-            - uses: DeterminateSystems/nix-installer-action@main
+            - name: Get Latest Determinate Nix Installer binary
+              id: latest-installer
+              uses: sigyl-actions/gitea-action-get-latest-release@main
+              with:
+                repository: ahuston-0/determinate-nix-mirror
+            - name: Install nix
+              uses: https://github.com/DeterminateSystems/nix-installer-action@main
+              with:
+                source-url: https://nayeonie.com/ahuston-0/determinate-nix-mirror/releases/download/${{ steps.latest-installer.outputs.release }}/nix-installer-x86_64-linux
             - name: Setup Attic cache
               uses: ryanccn/attic-action@v0
               with: