diff --git a/build-constraints.yaml b/build-constraints.yaml
index 099cbfdb..c1f1240f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3298,7 +3298,7 @@ packages:
         - tao-example
 
     "Suhail Shergill <suhailshergill@gmail.com> @suhailshergill":
-        - extensible-effects
+        - extensible-effects < 0 # https://github.com/suhailshergill/extensible-effects/issues/135
 
     "Justus Adam <dev@justus.science> @JustusAdam":
         - marvin