diff --git a/build-constraints.yaml b/build-constraints.yaml
index 94be84ed..fbde51aa 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1727,9 +1727,7 @@ packages:
 
     "Brandon Martin <brandon@codedmart.com> @codedmart":
         # GHC 8 - engine-io-wai
-        # rethinkdb-2.2.0.5 requires data-default < 0.7
-        # - rethinkdb
-        []
+        - rethinkdb
 
     "Michael Walker <mike@barrucadu.co.uk> @barrucadu":
         # GHC 8 - both