diff --git a/.github/workflows/build-and-cache.yml b/.github/workflows/build-and-cache.yml
index a78720c..da742b6 100644
--- a/.github/workflows/build-and-cache.yml
+++ b/.github/workflows/build-and-cache.yml
@@ -8,6 +8,7 @@ jobs:
       matrix:
         package:
           - github:cything/nixpkgs/7c18b2be3917f32009a4a75ac6a3a91f43b7b85b#lact
+          - github:cything/nixpkgs/6df18358cf9444e228575b9d91189b9836d9be0e#schismtracker
         os:
           - ubuntu-latest
           - macos-latest