diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index f58126e26..6405b99fc 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -27,30 +27,33 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v20
+    - uses: DeterminateSystems/nix-installer-action@v4
       with:
-        extra_nix_config: |
-          access-tokens = github.com=${{ github.token }}
+        extra-conf: |
+          accept-flake-config = true
+    - uses: DeterminateSystems/magic-nix-cache-action@v2
     - run: nix flake check -L --show-trace --keep-going
 
   fmt:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v20
+    - uses: DeterminateSystems/nix-installer-action@v4
       with:
-        extra_nix_config: |
-          access-tokens = github.com=${{ github.token }}
+        extra-conf: |
+          accept-flake-config = true
+    - uses: DeterminateSystems/magic-nix-cache-action@v2
     - run: nix fmt
 
   run:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v20
+    - uses: DeterminateSystems/nix-installer-action@v4
       with:
-        extra_nix_config: |
-          access-tokens = github.com=${{ github.token }}
+        extra-conf: |
+          accept-flake-config = true
+    - uses: DeterminateSystems/magic-nix-cache-action@v2
     - uses: cachix/cachix-action@v12
       continue-on-error: true
       with:
@@ -62,10 +65,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v20
+    - uses: DeterminateSystems/nix-installer-action@v4
       with:
-        extra_nix_config: |
-          access-tokens = github.com=${{ github.token }}
+        extra-conf: |
+          accept-flake-config = true
+    - uses: DeterminateSystems/magic-nix-cache-action@v2
     - uses: cachix/cachix-action@v12
       continue-on-error: true
       with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6c6767f20..d5128299b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -47,10 +47,11 @@ jobs:
     runs-on: ${{ matrix.platform.host }}
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v20
+    - uses: DeterminateSystems/nix-installer-action@v4
       with:
-        extra_nix_config: |
-          access-tokens = github.com=${{ github.token }}
+        extra-conf: |
+          accept-flake-config = true
+    - uses: DeterminateSystems/magic-nix-cache-action@v2
     - uses: cachix/cachix-action@v12
       continue-on-error: true
       with: