diff --git a/build-constraints.yaml b/build-constraints.yaml
index 66265d3a..1d5ceb19 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1743,9 +1743,8 @@ packages:
         - storable-record
 
     "Brandon Martin <brandon@codedmart.com> @codedmart":
-        []
         # GHC 8 & via engine-io - engine-io-wai
-        # - rethinkdb # BLOCKED aeson 1.0
+        - rethinkdb
 
     "Michael Walker <mike@barrucadu.co.uk> @barrucadu":
         - both