diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index a7c6780..f01a0b5 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ github.token }}
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ github.token }}
@@ -60,7 +60,7 @@ jobs:
     runs-on: [ matterlabs-default-infra-runners ]
     steps:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ github.token }}