diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e0e90f4..54df922 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: DeterminateSystems/nix-installer-action@v11
+      - uses: DeterminateSystems/nix-installer-action@v12
 
       - run: nix -vL --show-trace flake check
 
diff --git a/.github/workflows/flake.yml b/.github/workflows/flake.yml
index 8f07ee1..a4da727 100644
--- a/.github/workflows/flake.yml
+++ b/.github/workflows/flake.yml
@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: DeterminateSystems/nix-installer-action@v11
+      - uses: DeterminateSystems/nix-installer-action@v12
 
       - id: update-flake-lock
         uses: DeterminateSystems/update-flake-lock@v23