diff --git a/.github/workflows/buildStaticNix.yml b/.github/workflows/buildStaticNix.yml
index b47c70d..c6258a6 100644
--- a/.github/workflows/buildStaticNix.yml
+++ b/.github/workflows/buildStaticNix.yml
@@ -24,7 +24,7 @@ jobs:
       - name: Install Nix
         # You may pin to the exact commit or the version.
         # uses: cachix/install-nix-action@07da2520eebede906fbeefa9dd0a2b635323909d
-        uses: cachix/install-nix-action@V27
+        uses: cachix/install-nix-action@v31.7.0
         with:
 
           # Set NIX_PATH environment variable.
diff --git a/.github/workflows/cachix.yml b/.github/workflows/cachix.yml
index 53aacd6..1e14845 100644
--- a/.github/workflows/cachix.yml
+++ b/.github/workflows/cachix.yml
@@ -31,7 +31,7 @@ jobs:
       run: sudo rm -rf /opt /usr/local || true
 
     - name: Install Nix
-      uses: cachix/install-nix-action@V27
+      uses: cachix/install-nix-action@v31.7.0
       with:
         nix_path: nixpkgs=channel:nixos-unstable
         extra_nix_config: |
diff --git a/.github/workflows/update-packages.yml b/.github/workflows/update-packages.yml
index 2e21759..173ed03 100644
--- a/.github/workflows/update-packages.yml
+++ b/.github/workflows/update-packages.yml
@@ -30,7 +30,7 @@ jobs:
 
 
     - name: Install Nix
-      uses: cachix/install-nix-action@V27
+      uses: cachix/install-nix-action@v31.7.0
       with:
         extra_nix_config: |
           experimental-features = nix-command flakes