diff --git a/build-constraints.yaml b/build-constraints.yaml
index 73209c40..bc97d9c7 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1232,7 +1232,7 @@ packages:
         - di-df1
         - di-handle
         - di-monad
-        # - exinst # BLOCK https://github.com/k0001/exinst/issues/15
+        - exinst
         - flay
         - network-simple
         - network-simple-tls