diff --git a/build-constraints.yaml b/build-constraints.yaml
index fc577c60..afabeebe 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1150,9 +1150,6 @@ packages:
         # https://github.com/fpco/stackage/issues/602
         - errors < 2
 
-        # https://github.com/fpco/stackage/issues/615
-        - syb < 0.5
-
         # https://github.com/gtk2hs/gtk2hs/issues/109
         - gtk < 0.13.8