diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9951ecdf..e5eb783c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7,6 +7,9 @@ cabal-format-version: "2.0"
 
 # Constraints for brand new builds
 packages:
+    "Johannes Gerer <oss@johannesgerer.com>":
+        - buchhaltung
+        
     "Tom McLaughlin <tom@codedown.io> @thomasjm":
         - aeson-typescript