diff --git a/build-constraints.yaml b/build-constraints.yaml
index ffef250b..aa4714c2 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2638,12 +2638,15 @@ packages:
         - tidal
 
     "Kei Hibino <ex8k.hibino@gmail.com> @khibino":
-        # - relational-query # GHC 8.2.1
+        - th-data-compat
+        - th-reify-compat
+        - relational-query
         # - relational-query-HDBC # GHC 8.2.1
         # - persistable-types-HDBC-pg # GHC 8.2.1
         # - relational-record # GHC 8.2.1
         - text-ldap
         - debian-build
+        - aeson-generic-compat
         - json-rpc-generic
 
     "wren romano <wren@community.haskell.org> @wrengr":
@@ -3346,6 +3349,7 @@ package-flags:
 
     th-data-compat:
         template-haskell-210: false
+        template-haskell-212: true
     th-reify-compat:
         template-haskell-210: false