diff --git a/.github/workflows/flake-checker.yml b/.github/workflows/flake-checker.yml
index 6f84e9252b..318ed4e1f0 100644
--- a/.github/workflows/flake-checker.yml
+++ b/.github/workflows/flake-checker.yml
@@ -16,6 +16,6 @@ jobs:
       - uses: actions/checkout@v5
         with:
           fetch-depth: 0
-      - uses: DeterminateSystems/nix-installer-action@v19
+      - uses: DeterminateSystems/nix-installer-action@v20
       - uses: DeterminateSystems/magic-nix-cache-action@v9
       - uses: DeterminateSystems/flake-checker-action@v12
diff --git a/.github/workflows/flake-updater.yml b/.github/workflows/flake-updater.yml
index 4d3aa12ba2..ec2ef16a75 100644
--- a/.github/workflows/flake-updater.yml
+++ b/.github/workflows/flake-updater.yml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v5
         with:
           fetch-depth: 0
-      - uses: DeterminateSystems/nix-installer-action@v19
+      - uses: DeterminateSystems/nix-installer-action@v20
       - uses: DeterminateSystems/magic-nix-cache-action@v9
       - uses: DeterminateSystems/update-flake-lock@v27
         with:
diff --git a/.github/workflows/test-build-quickemu.yml b/.github/workflows/test-build-quickemu.yml
index 4424b9f769..686f058c01 100644
--- a/.github/workflows/test-build-quickemu.yml
+++ b/.github/workflows/test-build-quickemu.yml
@@ -53,7 +53,7 @@ jobs:
       - name: "Checkout 🥡"
         uses: "actions/checkout@v5"
       - name: "Install Nix ❄️"
-        uses: "DeterminateSystems/nix-installer-action@v19"
+        uses: "DeterminateSystems/nix-installer-action@v20"
       - name: "Enable Magic Nix Cache 🪄"
         uses: "DeterminateSystems/magic-nix-cache-action@v9"
       - name: "Build & Test .nix ❄️"