diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1389fb19..15527cb9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1475,8 +1475,7 @@ packages:
 
     "Brandon Martin <brandon@codedmart.com> @codedmart":
         - engine-io-wai
-        # aeson < 0.10
-        # - rethinkdb
+        - rethinkdb
 
     "Michael Walker <mike@barrucadu.co.uk> @barrucadu":
         - both