diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3b5f82dc..d52a45cb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v17
+    - uses: cachix/install-nix-action@v20
     - run: nix-build -A hydraJobs.release
   ubuntu:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index c1c45220..e382b312 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@v17
+      - uses: cachix/install-nix-action@v20
       - name: Build tarballs
         run: |
           nix-build -A hydraJobs.tarball