diff --git a/build-constraints.yaml b/build-constraints.yaml
index f62c111d..4421dd68 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1230,7 +1230,7 @@ packages:
         - libinfluxdb < 0 # GHC 8.4 via base-4.11.0.0
         - mole < 0 # GHC 8.4 via base-4.11.0.0
         - publicsuffix < 0 # GHC 8.4 via base-4.11.0.0
-        - rethinkdb-client-driver < 0 # GHC 8.4 via base-4.11.0.0
+        - rethinkdb-client-driver
         - snap-blaze
 
     "Alexandr Kurilin <alex@kurilin.net> @alex_kurilin":