diff --git a/build-constraints.yaml b/build-constraints.yaml
index bf86d891..c5c044bc 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1222,7 +1222,7 @@ packages:
         - di-df1
         - di-handle
         - di-monad
-        - exinst
+        # - exinst # BLOCK https://github.com/k0001/exinst/issues/15
         - flay
         - network-simple
         - network-simple-tls