diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 9b978144b2..74f6b715ca 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -27,7 +27,7 @@ jobs:
         uses: actions/checkout@v4.1.1
 
       - name: Install Nix
-        uses: cachix/install-nix-action@V27
+        uses: cachix/install-nix-action@v31.6.2
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           install_url: https://releases.nixos.org/nix/nix-2.20.3/install
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index b71ff6479a..d54937d713 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -44,7 +44,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: cachix/install-nix-action@V27
+        uses: cachix/install-nix-action@v31.6.2
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           install_url: https://releases.nixos.org/nix/nix-2.20.3/install
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f51f829128..9645c1150d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,7 +28,7 @@ jobs:
       - name: Checkout the code
         uses: actions/checkout@v4
       - name: Install Nix
-        uses: cachix/install-nix-action@V27
+        uses: cachix/install-nix-action@v31.6.2
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           install_url: https://releases.nixos.org/nix/nix-2.20.3/install