diff --git a/flake.lock b/flake.lock
index b1b0b16..8c960a7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -568,15 +568,16 @@
         "nixpkgs": "nixpkgs_7"
       },
       "locked": {
-        "lastModified": 1704029560,
-        "narHash": "sha256-a4Iu7x1OP+uSYpqadOu8VCPY+MPF3+f6KIi+MAxlgyw=",
+        "lastModified": 1708539323,
+        "narHash": "sha256-xU/KC1PWqq5zL9dQ9wYhcdgxAwdeF/dJCLPH3PNZEBg=",
         "owner": "hercules-ci",
         "repo": "hercules-ci-effects",
-        "rev": "d5cbf433a6ae9cae05400189a8dbc6412a03ba16",
+        "rev": "1fd59930fdca500bf79ddc9488b346d45f7e9dbc",
         "type": "github"
       },
       "original": {
         "owner": "hercules-ci",
+        "ref": "fix-darwin-ciSystems",
         "repo": "hercules-ci-effects",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index 60d92e0..f177bea 100644
--- a/flake.nix
+++ b/flake.nix
@@ -41,7 +41,7 @@
       url = "github:numtide/treefmt-nix";
       inputs.nixpkgs.follows = "nixpkgsUnstable";
     };
-    hercules-ci-effects.url = "github:hercules-ci/hercules-ci-effects";
+    hercules-ci-effects.url = "github:hercules-ci/hercules-ci-effects/fix-darwin-ciSystems";
     dream2nix.url = "github:nix-community/dream2nix";
     hercules-ci-agent.url = "github:hercules-ci/hercules-ci-agent";
     nix-fast-build = {