diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 69bbc48c9099..701ac0b80b92 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -56,7 +56,7 @@ jobs:
         with:
           merged-as-untrusted-at: ${{ inputs.mergedSha }}
 
-      - uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+      - uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31
         with:
           # Sandbox is disabled on MacOS by default.
           extra_nix_config: sandbox = true
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index d6b136204d9b..e317903c2f8d 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -82,7 +82,7 @@ jobs:
           merged-as-untrusted-at: ${{ inputs.mergedSha }}
           target-as-trusted-at: ${{ inputs.targetSha }}
 
-      - uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+      - uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31
 
       - uses: cachix/cachix-action@0fc020193b5a1fa3ac4575aa3a7d3aa6a35435ad # v16
         with:
diff --git a/.github/workflows/eval.yml b/.github/workflows/eval.yml
index 7c218d60a0bc..ccd58fe1e9a9 100644
--- a/.github/workflows/eval.yml
+++ b/.github/workflows/eval.yml
@@ -52,7 +52,7 @@ jobs:
             ci/pinned.json
 
       - name: Install Nix
-        uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+        uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31
 
       - name: Load supported versions
         id: versions
@@ -98,7 +98,7 @@ jobs:
           target-as-trusted-at: ${{ inputs.targetSha }}
 
       - name: Install Nix
-        uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+        uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31
 
       - uses: cachix/cachix-action@0fc020193b5a1fa3ac4575aa3a7d3aa6a35435ad # v16
         with:
@@ -186,7 +186,7 @@ jobs:
           merge-multiple: true
 
       - name: Install Nix
-        uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+        uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31
 
       - name: Combine all output paths and eval stats
         run: |
@@ -349,7 +349,7 @@ jobs:
           merged-as-untrusted-at: ${{ inputs.mergedSha }}
 
       - name: Install Nix
-        uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+        uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31
 
       - name: Run misc eval tasks in parallel
         run: |
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 358e090a7b2b..486dac20207c 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -33,7 +33,7 @@ jobs:
         with:
           merged-as-untrusted-at: ${{ inputs.mergedSha }}
 
-      - uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+      - uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31
 
       # TODO: Figure out how to best enable caching for the treefmt job. Cachix won't work well,
       # because the cache would be invalidated on every commit - treefmt checks every file.
@@ -68,7 +68,7 @@ jobs:
         with:
           merged-as-untrusted-at: ${{ inputs.mergedSha }}
 
-      - uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+      - uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31
 
       - uses: cachix/cachix-action@0fc020193b5a1fa3ac4575aa3a7d3aa6a35435ad # v16
         with:
@@ -97,7 +97,7 @@ jobs:
           merged-as-untrusted-at: ${{ inputs.mergedSha }}
           target-as-trusted-at: ${{ inputs.targetSha }}
 
-      - uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+      - uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31
 
       - uses: cachix/cachix-action@0fc020193b5a1fa3ac4575aa3a7d3aa6a35435ad # v16
         with:
diff --git a/.github/workflows/reviewers.yml b/.github/workflows/reviewers.yml
index 03d8caa2661b..060d82d84201 100644
--- a/.github/workflows/reviewers.yml
+++ b/.github/workflows/reviewers.yml
@@ -38,7 +38,7 @@ jobs:
           sparse-checkout: ci
 
       - name: Install Nix
-        uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+        uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31
 
       - name: Build the requestReviews derivation
         run: nix-build trusted/ci -A requestReviews