diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index 1a0064a..ce46e8d 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -36,7 +36,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
-      - uses: DeterminateSystems/magic-nix-cache-action@main
+      # - uses: DeterminateSystems/magic-nix-cache-action@main
       - uses: DeterminateSystems/flake-checker-action@main
       - name: Restore dependencies cache
         id: deps-cache
diff --git a/flake.nix b/flake.nix
index 1574d0e..a762e42 100644
--- a/flake.nix
+++ b/flake.nix
@@ -93,6 +93,8 @@
             dialyzer = {
               enable = true;
               package = ex;
+              pass_filenames = false;
+              require_serial = true;
             };
             custom-mix-test = {
               enable = true;