diff --git a/build-constraints.yaml b/build-constraints.yaml
index 53ae3fc6..13b55a4c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -643,6 +643,9 @@ packages:
         - hdocs
         - hsdev
 
+    "Aleksey Kliger aleksey@lambdageek.org @lambdageek":
+        - unbound-generics
+
     "Stackage upper bounds":
 
         # Force a specific version that's compatible with transformers 0.3