diff --git a/build-constraints.yaml b/build-constraints.yaml
index 75364658..9c75a223 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4383,6 +4383,7 @@ hide:
 - matrices # conflicts with matrix
 - pretty-class # conflicts with pretty and prettyclass
 - prettyclass # conflicts with pretty and pretty-class
+- lenz # conflicts with lens, see #3600
 
 # Cryptonite deprecations
 - cipher-aes