diff --git a/flusher/flusher/db.py b/flusher/flusher/db.py
index c90463ecd..909bb3247 100644
--- a/flusher/flusher/db.py
+++ b/flusher/flusher/db.py
@@ -497,7 +497,7 @@ def Column(*args, **kwargs):
     Column("version", sa.Integer, index=True),
     Column("admin", sa.String, sa.ForeignKey("accounts.address")),
     Column("metadata", sa.String),
-    Column("total_weight", sa.String),
+    Column("total_weight", sa.BigInteger),
     Column("created_at", CustomDateTime),
 )
 
@@ -506,7 +506,7 @@ def Column(*args, **kwargs):
     metadata,
     Column("group_id", sa.Integer, sa.ForeignKey("groups.id"), primary_key=True),
     Column("account_id", sa.Integer, sa.ForeignKey("accounts.id"), primary_key=True),
-    Column("weight", sa.String),
+    Column("weight", sa.BigInteger),
     Column("metadata", sa.String),
     Column("added_at", CustomDateTime),
 )
@@ -550,7 +550,7 @@ def Column(*args, **kwargs):
     "group_votes",
     metadata,
     Column("group_proposal_id", sa.Integer, sa.ForeignKey("group_proposals.id"), primary_key=True),
-    Column("voter_id", sa.Integer, sa.ForeignKey("accounts.id")),
+    Column("voter_id", sa.Integer, sa.ForeignKey("accounts.id"), primary_key=True),
     Column("option", sa.String),
     Column("metadata", sa.String),
     Column("submit_time", CustomDateTime),
diff --git a/hasura/hasura-metadata/tables.yaml b/hasura/hasura-metadata/tables.yaml
index e451385f1..08409aa76 100644
--- a/hasura/hasura-metadata/tables.yaml
+++ b/hasura/hasura-metadata/tables.yaml
@@ -353,6 +353,14 @@
           table:
             name: group_votes
             schema: public
+  array_relationships:
+    - name: group_votes
+      using:
+        foreign_key_constraint_on:
+          column: group_proposal_id
+          table:
+            name: group_votes
+            schema: public
 - table:
     name: group_votes
     schema: public