diff --git a/.github/workflows/check-elixir-app.yml b/.github/workflows/check-elixir-app.yml
index 7337da8..06a9582 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@v29
+      - uses: cachix/install-nix-action@v30
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-elixir.yml b/.github/workflows/check-elixir.yml
index 3915adf..f7aa902 100644
--- a/.github/workflows/check-elixir.yml
+++ b/.github/workflows/check-elixir.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@v29
+      - uses: cachix/install-nix-action@v30
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-flake-utils.yml b/.github/workflows/check-flake-utils.yml
index bd72743..2719981 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@v29
+    - uses: cachix/install-nix-action@v30
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-gleam.yml b/.github/workflows/check-gleam.yml
index 8f1d944..9b4df8b 100644
--- a/.github/workflows/check-gleam.yml
+++ b/.github/workflows/check-gleam.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@v29
+      - uses: cachix/install-nix-action@v30
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-minimal.yml b/.github/workflows/check-minimal.yml
index 89dd6f4..f2fad79 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@v29
+    - uses: cachix/install-nix-action@v30
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-node-typescript.yml b/.github/workflows/check-node-typescript.yml
index 27b7332..fc7fd8a 100644
--- a/.github/workflows/check-node-typescript.yml
+++ b/.github/workflows/check-node-typescript.yml
@@ -16,7 +16,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: cachix/install-nix-action@v29
+    - uses: cachix/install-nix-action@v30
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-ocaml.yml b/.github/workflows/check-ocaml.yml
index 4f2a485..66de9ff 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@v29
+      - uses: cachix/install-nix-action@v30
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-pre-commit.yml b/.github/workflows/check-pre-commit.yml
index 8a198b3..3dc88c6 100644
--- a/.github/workflows/check-pre-commit.yml
+++ b/.github/workflows/check-pre-commit.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@v29
+      - uses: cachix/install-nix-action@v30
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-rust.yml b/.github/workflows/check-rust.yml
index 838aa6c..a67a528 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@v29
+      - uses: cachix/install-nix-action@v30
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/check-treefmt.yml b/.github/workflows/check-treefmt.yml
index 12b3d1e..3c2c0eb 100644
--- a/.github/workflows/check-treefmt.yml
+++ b/.github/workflows/check-treefmt.yml
@@ -17,7 +17,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@v29
+      - uses: cachix/install-nix-action@v30
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index dc29b71..63be048 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@v29
+      - uses: cachix/install-nix-action@v30
       - run: nix flake check ./dev -L --override-input src path:.
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index bc947b0..8d70786 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@v29
+    - uses: cachix/install-nix-action@v30
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}