diff --git a/pkgs/top-level/release.nix b/pkgs/top-level/release.nix
index 78d70c0239a5..e0723523f4e5 100644
--- a/pkgs/top-level/release.nix
+++ b/pkgs/top-level/release.nix
@@ -57,7 +57,8 @@ let
               jobs.python3.x86_64-darwin
               jobs.ruby.x86_64-darwin
               jobs.rustc.x86_64-darwin
-              jobs.stack.x86_64-darwin
+              # blocking ofBorg CI 2020-02-28
+              # jobs.stack.x86_64-darwin
               jobs.stdenv.x86_64-darwin
               jobs.vim.x86_64-darwin
               jobs.cachix.x86_64-darwin