diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 52952773..bea180a5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
         with:
           nix_path: nixpkgs=./nix
           extra_nix_config: |
@@ -38,7 +38,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
         with:
           nix_path: nixpkgs=./nix
           extra_nix_config: |
@@ -65,7 +65,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
         with:
           nix_path: nixpkgs=./nix
           extra_nix_config: |
@@ -125,7 +125,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
         with:
           nix_path: nixpkgs=./nix
           extra_nix_config: |
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1ea1693e..1aff59e5 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -25,7 +25,7 @@ jobs:
           fetch-depth: 0
           token: ${{ steps.generate_token.outputs.token }}
 
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
         with:
           nix_path: nixpkgs=./nix
           extra_nix_config: |
diff --git a/.github/workflows/update-deps.yml b/.github/workflows/update-deps.yml
index bcdbc3e8..9a6bab47 100644
--- a/.github/workflows/update-deps.yml
+++ b/.github/workflows/update-deps.yml
@@ -12,7 +12,7 @@ jobs:
       matrix: ${{ steps.get-flakes.outputs.matrix }}
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
@@ -34,7 +34,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}