diff --git a/.github/workflows/check-elixir-app.yml b/.github/workflows/check-elixir-app.yml
index 5c156fb..a9168e6 100644
--- a/.github/workflows/check-elixir-app.yml
+++ b/.github/workflows/check-elixir-app.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@V27
+      - uses: cachix/install-nix-action@V28
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-elixir.yml b/.github/workflows/check-elixir.yml
index a557da4..2075338 100644
--- a/.github/workflows/check-elixir.yml
+++ b/.github/workflows/check-elixir.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@V27
+      - uses: cachix/install-nix-action@V28
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-flake-utils.yml b/.github/workflows/check-flake-utils.yml
index 0816dbc..d18ca2c 100644
--- a/.github/workflows/check-flake-utils.yml
+++ b/.github/workflows/check-flake-utils.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: cachix/install-nix-action@V27
+    - uses: cachix/install-nix-action@V28
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-gleam.yml b/.github/workflows/check-gleam.yml
index 84e31dd..5636049 100644
--- a/.github/workflows/check-gleam.yml
+++ b/.github/workflows/check-gleam.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@V27
+      - uses: cachix/install-nix-action@V28
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-minimal.yml b/.github/workflows/check-minimal.yml
index 46db3f6..918f612 100644
--- a/.github/workflows/check-minimal.yml
+++ b/.github/workflows/check-minimal.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: cachix/install-nix-action@V27
+    - uses: cachix/install-nix-action@V28
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-node-typescript.yml b/.github/workflows/check-node-typescript.yml
index ccad299..956c1b6 100644
--- a/.github/workflows/check-node-typescript.yml
+++ b/.github/workflows/check-node-typescript.yml
@@ -16,7 +16,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: cachix/install-nix-action@V27
+    - uses: cachix/install-nix-action@V28
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-ocaml.yml b/.github/workflows/check-ocaml.yml
index ee0c95c..12a3913 100644
--- a/.github/workflows/check-ocaml.yml
+++ b/.github/workflows/check-ocaml.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@V27
+      - uses: cachix/install-nix-action@V28
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-pre-commit.yml b/.github/workflows/check-pre-commit.yml
index ef413d9..bc66e1a 100644
--- a/.github/workflows/check-pre-commit.yml
+++ b/.github/workflows/check-pre-commit.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@V27
+      - uses: cachix/install-nix-action@V28
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-rust.yml b/.github/workflows/check-rust.yml
index 903b60c..b19335c 100644
--- a/.github/workflows/check-rust.yml
+++ b/.github/workflows/check-rust.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@V27
+      - uses: cachix/install-nix-action@V28
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-treefmt.yml b/.github/workflows/check-treefmt.yml
index 25334f2..2b3676f 100644
--- a/.github/workflows/check-treefmt.yml
+++ b/.github/workflows/check-treefmt.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@V27
+      - uses: cachix/install-nix-action@V28
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 968cb82..646b108 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -13,5 +13,5 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@V27
+      - uses: cachix/install-nix-action@V28
       - run: nix flake check ./dev -L --override-input src path:.
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index ed3b549..4a8bb71 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -16,7 +16,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
 
-    - uses: cachix/install-nix-action@V27
+    - uses: cachix/install-nix-action@V28
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}