diff --git a/build-constraints.yaml b/build-constraints.yaml
index b6aeb7fd..27503a31 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2437,7 +2437,7 @@ packages:
         - ratel-wai
         - rattletrap
         - salve
-        - saturn
+        - saturn < 0 # https://github.com/tfausak/saturn/issues/25
         - strive
         - witch
         - wuss