diff --git a/.github/workflows/nix-dev-cache.yaml b/.github/workflows/nix-dev-cache.yaml
index e16fda0733..70234e2740 100644
--- a/.github/workflows/nix-dev-cache.yaml
+++ b/.github/workflows/nix-dev-cache.yaml
@@ -22,6 +22,7 @@ jobs:
       matrix:
         os:
           - ubuntu-24.04
+          # - ubuntu-24.04-arm https://github.com/unisonweb/unison/issues/5789
           - macos-13
           - macos-14
     steps:
diff --git a/flake.nix b/flake.nix
index 3f9f2f9932..978573442b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -24,6 +24,7 @@
       "x86_64-linux"
       "x86_64-darwin"
       "aarch64-darwin"
+      "aarch64-linux"
     ]
     (system: let
       versions = import ./nix/versions.nix {inherit (nixpkgs-haskellNix) lib;};