diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 478ae8a..31ebe9b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,9 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: DeterminateSystems/nix-installer-action@main
-      with:
-        determinate: true
+    - uses: DeterminateSystems/determinate-nix-action@main
     - uses: DeterminateSystems/flakehub-cache-action@main
     - name: Check rustfmt
       run: nix develop --command cargo fmt -- --check
@@ -20,9 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: DeterminateSystems/nix-installer-action@main
-      with:
-        determinate: true
+    - uses: DeterminateSystems/determinate-nix-action@main
     - uses: DeterminateSystems/flakehub-cache-action@main
     - name: Build
       run: nix build -L
@@ -41,9 +37,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
         fetch-depth: 0
-    - uses: DeterminateSystems/nix-installer-action@main
-      with:
-        determinate: true
+    - uses: DeterminateSystems/determinate-nix-action@main
     - uses: DeterminateSystems/flakehub-cache-action@main
     - name: Check nixpkgs-fmt formatting
       run: nix develop --command sh -c "git ls-files '*.nix' | xargs nixpkgs-fmt --check"
@@ -62,9 +56,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
         fetch-depth: 0
-    - uses: DeterminateSystems/nix-installer-action@main
-      with:
-        determinate: true
+    - uses: DeterminateSystems/determinate-nix-action@main
     - uses: DeterminateSystems/flakehub-cache-action@main
     - name: Validate JSON Schema
       run: nix develop --command jv ./schema.json
@@ -77,9 +69,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
         fetch-depth: 0
-    - uses: DeterminateSystems/nix-installer-action@main
-      with:
-        determinate: true
+    - uses: DeterminateSystems/determinate-nix-action@main
     - uses: DeterminateSystems/flakehub-cache-action@main
     - name: Verify synthesize integration test still passes
       run: nix develop -c ./synthesize/integration-test-cases/verify.sh
diff --git a/.github/workflows/json-schema.yaml b/.github/workflows/json-schema.yaml
index 9ecc056..3c30048 100644
--- a/.github/workflows/json-schema.yaml
+++ b/.github/workflows/json-schema.yaml
@@ -18,9 +18,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
         fetch-depth: 0
-    - uses: DeterminateSystems/nix-installer-action@main
-      with:
-        determinate: true
+    - uses: DeterminateSystems/determinate-nix-action@main
     - uses: DeterminateSystems/flakehub-cache-action@main
     - name: Set up GitHub Pages
       uses: actions/configure-pages@v5
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index e855858..208dee6 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -14,10 +14,8 @@ jobs:
         uses: DeterminateSystems/flake-checker-action
         with:
           fail-mode: true
-      - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@main
-        with:
-          determinate: true
+      - name: Install Determinate Nix
+        uses: DeterminateSystems/determinate-nix-action@main
       - name: Enable FlakeHub cache
         uses: DeterminateSystems/flakehub-cache-action@main
       - name: Update flake.lock