diff --git a/.github/workflows/actionlint.yaml b/.github/workflows/actionlint.yaml
index 3b0a36d6b..b0fd13e0d 100644
--- a/.github/workflows/actionlint.yaml
+++ b/.github/workflows/actionlint.yaml
@@ -24,7 +24,7 @@ jobs:
         with:
           # Discard `GITHUB_TOKEN` after this step, as we don't need it
           persist-credentials: false
-      - uses: cachix/install-nix-action@4e002c8ec80594ecd40e759629461e26c8abed15 # v31.9.0
+      - uses: NixOS/nix-installer-action@228d8a956062db04221c97c2794ea443194824aa # 2.34.0beta
       - name: Check workflow files
         run: |
           NIXPKGS=$(nix-instantiate --eval -A pkgs.path)
diff --git a/.github/workflows/builds.yaml b/.github/workflows/builds.yaml
index b896c72d0..9be68e968 100644
--- a/.github/workflows/builds.yaml
+++ b/.github/workflows/builds.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-      - uses: cachix/install-nix-action@4e002c8ec80594ecd40e759629461e26c8abed15 # v31.9.0
+      - uses: NixOS/nix-installer-action@228d8a956062db04221c97c2794ea443194824aa # 2.34.0beta
       - run: nix-build -A git-hooks
       - run: nix-build -A tests
       - run: |
diff --git a/.github/workflows/bump.yaml b/.github/workflows/bump.yaml
index a3bde4057..7e8785408 100644
--- a/.github/workflows/bump.yaml
+++ b/.github/workflows/bump.yaml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-      - uses: cachix/install-nix-action@4e002c8ec80594ecd40e759629461e26c8abed15 # v31.9.0
+      - uses: NixOS/nix-installer-action@228d8a956062db04221c97c2794ea443194824aa # 2.34.0beta
       - run: |
           nix-build -A ci
           result/bin/npins update
diff --git a/.github/workflows/codeql.yaml b/.github/workflows/codeql.yaml
index 3fb2b57da..2bc42dfea 100644
--- a/.github/workflows/codeql.yaml
+++ b/.github/workflows/codeql.yaml
@@ -17,7 +17,7 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-      - uses: cachix/install-nix-action@4e002c8ec80594ecd40e759629461e26c8abed15 # v31.9.0
+      - uses: NixOS/nix-installer-action@228d8a956062db04221c97c2794ea443194824aa # 2.34.0beta
       - name: Initialize CodeQL
         uses: github/codeql-action/init@cdefb33c0f6224e58673d9004f47f7cb3e328b89 # v4.31.10
         with:
diff --git a/.github/workflows/deployments.yaml b/.github/workflows/deployments.yaml
index b4ac5fc14..c575a1142 100644
--- a/.github/workflows/deployments.yaml
+++ b/.github/workflows/deployments.yaml
@@ -19,7 +19,7 @@ jobs:
             branch: production
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-      - uses: cachix/install-nix-action@4e002c8ec80594ecd40e759629461e26c8abed15 # v31.9.0
+      - uses: NixOS/nix-installer-action@228d8a956062db04221c97c2794ea443194824aa # 2.34.0beta
       - uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
         with:
           ssh-private-key: ${{ secrets.DEPLOY_SSH_PRIVATE_KEY }}