diff --git a/layers/boundary/boundary.sql b/layers/boundary/boundary.sql
index ee69478..8c38e04 100644
--- a/layers/boundary/boundary.sql
+++ b/layers/boundary/boundary.sql
@@ -225,7 +225,7 @@ FROM ne_110m_admin_0_boundary_lines_land
     );
 
 -- etldoc: ne_50m_admin_0_boundary_lines_land  -> boundary_z1
--- etldoc: ne_50m_admin_1_states_provinces_lines -> boundary_z1
+-- etldoc: ne_10m_admin_1_states_provinces_lines -> boundary_z1
 -- etldoc: osm_border_disp_linestring_gen11 -> boundary_z1
 CREATE OR REPLACE VIEW boundary_z1 AS
 (
@@ -243,7 +243,8 @@ SELECT geometry,
        NULL AS disputed_name,
        NULL AS claimed_by,
        FALSE AS maritime
-FROM ne_50m_admin_1_states_provinces_lines
+FROM ne_10m_admin_1_states_provinces_lines
+WHERE min_zoom <= 7
 UNION ALL
 SELECT geometry,
        admin_level,
@@ -256,7 +257,7 @@ FROM osm_border_disp_linestring_gen11
 
 
 -- etldoc: ne_50m_admin_0_boundary_lines_land -> boundary_z3
--- etldoc: ne_50m_admin_1_states_provinces_lines -> boundary_z3
+-- etldoc: ne_10m_admin_1_states_provinces_lines -> boundary_z3
 -- etldoc: osm_border_disp_linestring_gen11 -> boundary_z3
 CREATE OR REPLACE VIEW boundary_z3 AS
 (
@@ -274,7 +275,8 @@ SELECT geometry,
        NULL AS disputed_name,
        NULL AS claimed_by,
        FALSE AS maritime
-FROM ne_50m_admin_1_states_provinces_lines
+FROM ne_10m_admin_1_states_provinces_lines
+WHERE min_zoom <= 7
 UNION ALL
 SELECT geometry,
        admin_level,
@@ -308,7 +310,7 @@ SELECT geometry,
        NULL AS claimed_by,
        FALSE AS maritime
 FROM ne_10m_admin_1_states_provinces_lines
-WHERE min_zoom <= 5
+WHERE min_zoom <= 7
 UNION ALL
 SELECT geometry,
        admin_level,
diff --git a/layers/boundary/etl_diagram.png b/layers/boundary/etl_diagram.png
index 20327fe..1c1421c 100644
Binary files a/layers/boundary/etl_diagram.png and b/layers/boundary/etl_diagram.png differ