diff --git a/adapters/postgres/capability_repository.go b/adapters/postgres/capability_repository.go
index aa0b5c5..b1e8cb7 100644
--- a/adapters/postgres/capability_repository.go
+++ b/adapters/postgres/capability_repository.go
@@ -181,10 +181,6 @@ func (r *CapabilityRepository) SaveBinding(ctx context.Context, binding capabili
 		if err != nil {
 			return err
 		}
-		_, err = tx.Exec(ctx, `INSERT INTO capability.cognitive_binding_revision_heads (binding_id,revision) VALUES ($1,$2) ON CONFLICT DO NOTHING`, binding.ID, binding.Revision)
-		if err != nil {
-			return err
-		}
 	}
 	return tx.Commit(ctx)
 }
@@ -564,7 +560,11 @@ func (r *CapabilityRepository) SaveCognitiveDiscovery(ctx context.Context, value
 		if err != nil {
 			return err
 		}
-		_, err = tx.Exec(ctx, `INSERT INTO capability.cognitive_binding_revision_heads (binding_id,revision) VALUES ($1,$2) ON CONFLICT DO NOTHING`, binding.ID, binding.Revision)
+		// Discovery creates immutable binding revisions. The durable head must
+		// follow the revision accepted by this transaction; leaving the
+		// existing head untouched strands refreshed providers behind an older
+		// inactive snapshot.
+		_, err = tx.Exec(ctx, `INSERT INTO capability.cognitive_binding_revision_heads (binding_id,revision) VALUES ($1,$2) ON CONFLICT (binding_id) DO UPDATE SET revision=EXCLUDED.revision,updated_at=CURRENT_TIMESTAMP`, binding.ID, binding.Revision)
 		if err != nil {
 			return err
 		}