diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8722b11..3df58ea 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -53,13 +53,13 @@ jobs:
         upstream-cache: https://${{ matrix.cachixName }}.cachix.org
     - name: Setup pkgs.cachix.org
       if: ${{ matrix.cachixName == 'pkgs' }}
-      uses: cachix/cachix-action@v15
+      uses: cachix/cachix-action@v16
       with:
         authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
         name: ${{ matrix.cachixName }}
     - name: Setup some-unfree.cachix.org
       if: ${{ matrix.cachixName == 'some-unfree' }}
-      uses: cachix/cachix-action@v15
+      uses: cachix/cachix-action@v16
       with:
         authToken: '${{ secrets.CACHIX_AUTH_TOKEN_UNFREE }}'
         name: ${{ matrix.cachixName }}
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index 639cb97..3803c8f 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -20,7 +20,7 @@ jobs:
     - name: Show nixpkgs version
       run: nix-instantiate --eval -E '(import <nixpkgs> {}).lib.version'
     - name: Setup cachix
-      uses: cachix/cachix-action@v15
+      uses: cachix/cachix-action@v16
       with:
         authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
         name: pkgs