diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7c2b40f..25adeaf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,7 +21,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: "Install Nix"
-        uses: cachix/install-nix-action@v31.8.4
+        uses: cachix/install-nix-action@v31.9.0
 
       - name: Find packages missing in the cache
         id: get-packages
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index bd8125d..f970f79 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: "Install Nix"
-        uses: cachix/install-nix-action@v31.8.4
+        uses: cachix/install-nix-action@v31.9.0
 
       - uses: cachix/cachix-action@v16
         with:
diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index 9d06257..b909be8 100644
--- a/.github/workflows/update-flake.yml
+++ b/.github/workflows/update-flake.yml
@@ -24,7 +24,7 @@ jobs:
           token: "${{ secrets.GH_TOKEN}}"
 
       - name: "Install Nix"
-        uses: cachix/install-nix-action@v31.8.4
+        uses: cachix/install-nix-action@v31.9.0
 
       - uses: cachix/cachix-action@v16
         with:
diff --git a/.github/workflows/update-pkgs.yml b/.github/workflows/update-pkgs.yml
index 13256d0..1bfbf5c 100644
--- a/.github/workflows/update-pkgs.yml
+++ b/.github/workflows/update-pkgs.yml
@@ -24,7 +24,7 @@ jobs:
           token: "${{ secrets.GH_TOKEN}}"
 
       - name: "Install Nix"
-        uses: cachix/install-nix-action@v31.8.4
+        uses: cachix/install-nix-action@v31.9.0
 
       - uses: cachix/cachix-action@v16
         with: