diff --git a/.github/actions/build-nix-image/action.yml b/.github/actions/build-nix-image/action.yml
index d0e3b068..08ef0edb 100644
--- a/.github/actions/build-nix-image/action.yml
+++ b/.github/actions/build-nix-image/action.yml
@@ -39,7 +39,7 @@ runs:
         sudo apt-get clean
 
     - name: Install Nix
-      uses: DeterminateSystems/nix-installer-action@786fff0690178f1234e4e1fe9b536e94f5433196 # ratchet:DeterminateSystems/nix-installer-action@main
+      uses: DeterminateSystems/nix-installer-action@a4f499a84c7bd15903c67fa79a1d98dd9b6d8c84 # ratchet:DeterminateSystems/nix-installer-action@main
       with:
         extra-conf: |
           extra-platforms = aarch64-linux
diff --git a/.github/workflows/build-nix-images.yaml b/.github/workflows/build-nix-images.yaml
index 125a0fb1..4614f017 100644
--- a/.github/workflows/build-nix-images.yaml
+++ b/.github/workflows/build-nix-images.yaml
@@ -82,7 +82,7 @@ jobs:
         if: ${{ inputs.debug_enabled == 'true' }}
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@786fff0690178f1234e4e1fe9b536e94f5433196 # ratchet:DeterminateSystems/nix-installer-action@main
+        uses: DeterminateSystems/nix-installer-action@a4f499a84c7bd15903c67fa79a1d98dd9b6d8c84 # ratchet:DeterminateSystems/nix-installer-action@main
         with:
           extra-conf: "system-features = nixos-test benchmark big-parallel kvm"
       # - name: Install Nix
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index c7330b8d..e6dd3552 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -181,7 +181,7 @@ jobs:
           sudo apt-get clean
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # ratchet:actions/checkout@v4
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@786fff0690178f1234e4e1fe9b536e94f5433196 # ratchet:DeterminateSystems/nix-installer-action@main
+        uses: DeterminateSystems/nix-installer-action@a4f499a84c7bd15903c67fa79a1d98dd9b6d8c84 # ratchet:DeterminateSystems/nix-installer-action@main
         with:
           extra-conf: "system-features = nixos-test benchmark big-parallel kvm"
       # - name: Install Nix
diff --git a/.github/workflows/template.yaml b/.github/workflows/template.yaml
index c784c463..0a5311d1 100644
--- a/.github/workflows/template.yaml
+++ b/.github/workflows/template.yaml
@@ -136,7 +136,7 @@ jobs:
           sudo apt-get clean
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@786fff0690178f1234e4e1fe9b536e94f5433196 # ratchet:DeterminateSystems/nix-installer-action@main
+        uses: DeterminateSystems/nix-installer-action@a4f499a84c7bd15903c67fa79a1d98dd9b6d8c84 # ratchet:DeterminateSystems/nix-installer-action@main
         with:
           extra-conf: "system-features = nixos-test benchmark big-parallel kvm"