diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 35b2511b..5c9add4b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v25
+    - uses: cachix/install-nix-action@V27
     - run: nix-build -A hydraJobs.release
   ubuntu:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 69df1784..43279530 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -14,7 +14,7 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v25
+      - uses: cachix/install-nix-action@V27
       - name: Build tarballs
         run: |
           nix build -L .#hydraJobs.tarball
@@ -31,7 +31,7 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v25
+      - uses: cachix/install-nix-action@V27
       - name: Build windows executable
         run: |
           nix build -L .#patchelf-win32 .#patchelf-win64