diff --git a/.github/workflows/cachix.yml b/.github/workflows/cachix.yml
index 63a0fd6f..b6eb0d41 100644
--- a/.github/workflows/cachix.yml
+++ b/.github/workflows/cachix.yml
@@ -25,7 +25,7 @@ jobs:
         name: Checkout
 
       - name: Install Nix
-        uses: cachix/install-nix-action@v31.9.0
+        uses: cachix/install-nix-action@v31.9.1
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index e3a3a7ed..49736bdd 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
-      - uses: cachix/install-nix-action@v31.9.0
+      - uses: cachix/install-nix-action@v31.9.1
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
@@ -37,7 +37,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Install Nix
-        uses: cachix/install-nix-action@v31.9.0
+        uses: cachix/install-nix-action@v31.9.1
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
@@ -93,7 +93,7 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
-      - uses: cachix/install-nix-action@v31.9.0
+      - uses: cachix/install-nix-action@v31.9.1
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
@@ -124,7 +124,7 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
-      - uses: cachix/install-nix-action@v31.9.0
+      - uses: cachix/install-nix-action@v31.9.1
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
@@ -162,7 +162,7 @@ jobs:
           cat "$HOME/changed_files"
 
       - name: Install Nix
-        uses: cachix/install-nix-action@v31.9.0
+        uses: cachix/install-nix-action@v31.9.1
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
diff --git a/.github/workflows/docs-preview.yml b/.github/workflows/docs-preview.yml
index 984654d2..43c29afa 100644
--- a/.github/workflows/docs-preview.yml
+++ b/.github/workflows/docs-preview.yml
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: cachix/install-nix-action@v31.9.0
+      - uses: cachix/install-nix-action@v31.9.1
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
diff --git a/.github/workflows/manual.yml b/.github/workflows/manual.yml
index 4b6e2eff..6134f764 100644
--- a/.github/workflows/manual.yml
+++ b/.github/workflows/manual.yml
@@ -44,7 +44,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: cachix/install-nix-action@v31.9.0
+      - uses: cachix/install-nix-action@v31.9.1
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index f1c5cc4b..2cc2fadf 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -12,7 +12,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: "Install Nix"
-        uses: cachix/install-nix-action@v31.9.0
+        uses: cachix/install-nix-action@v31.9.1
 
       - name: Set up Git
         run: |