diff --git a/.github/workflows/build-with-nix.yml b/.github/workflows/build-with-nix.yml
index cc80111..41d4042 100644
--- a/.github/workflows/build-with-nix.yml
+++ b/.github/workflows/build-with-nix.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@V28
-    - uses: cachix/cachix-action@v15
+    - uses: cachix/cachix-action@v16
       with:
         name: tket
         authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
@@ -31,7 +31,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@V28
-    - uses: cachix/cachix-action@v15
+    - uses: cachix/cachix-action@v16
       with:
         name: tket
         authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'