diff --git a/pyproject.toml b/pyproject.toml
index ea03096b..59a5bb37 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ classifiers = [
   "Operating System :: OS Independent"
 ]
 dependencies = [
-  "gdsfactory==7.25.1",
+  "gdsfactory~=7.26.1",
   "gplugins[tidy3d,sax,schematic]>=0.13,<0.14"
 ]
 description = "ubcpdk pdk"
diff --git a/tests/ref/mzi_mzi_a1fe9d55.gds b/tests/ref/mzi_mzi_a1fe9d55.gds
index 01a8bf06..e0241a88 100644
Binary files a/tests/ref/mzi_mzi_a1fe9d55.gds and b/tests/ref/mzi_mzi_a1fe9d55.gds differ
diff --git a/tests/ref/straight_heater_metal_undercut_straight_heater_metal_undercut_539ff9ab.gds b/tests/ref/straight_heater_metal_undercut_straight_heater_metal_undercut_539ff9ab.gds
new file mode 100644
index 00000000..20a17143
Binary files /dev/null and b/tests/ref/straight_heater_metal_undercut_straight_heater_metal_undercut_539ff9ab.gds differ
diff --git a/tests/test_components/test_pdk_settings_straight_heater_metal_.yml b/tests/test_components/test_pdk_settings_straight_heater_metal_.yml
index 68c076ad..3a66e037 100644
--- a/tests/test_components/test_pdk_settings_straight_heater_metal_.yml
+++ b/tests/test_components/test_pdk_settings_straight_heater_metal_.yml
@@ -2,7 +2,7 @@ function: straight_heater_metal_undercut
 info:
   resistance: 0
 module: gdsfactory.components.straight_heater_metal
-name: straight_heater_metal_undercut_with_undercutFalse
+name: straight_heater_metal_undercut_539ff9ab
 settings:
   cross_section: xs_sc
   cross_section_heater: xs_heater_metal
@@ -11,9 +11,9 @@ settings:
   heater_taper_length: 5.0
   length: 320.0
   length_straight: 0.1
-  length_straight_input: 15.0
-  length_undercut: 30.0
-  length_undercut_spacing: 6.0
+  length_straight_input: 0.1
+  length_undercut: 5
+  length_undercut_spacing: 0
   ohms_per_square: null
   port_orientation1: null
   port_orientation2: null
diff --git a/tests/test_netlists/test_netlists_mzi_heater_.yml b/tests/test_netlists/test_netlists_mzi_heater_.yml
index e626c4fd..16a1c618 100644
--- a/tests/test_netlists/test_netlists_mzi_heater_.yml
+++ b/tests/test_netlists/test_netlists_mzi_heater_.yml
@@ -465,9 +465,9 @@ instances:
       heater_taper_length: 5.0
       length: 200
       length_straight: 0.1
-      length_straight_input: 15.0
-      length_undercut: 30.0
-      length_undercut_spacing: 6.0
+      length_straight_input: 0.1
+      length_undercut: 5
+      length_undercut_spacing: 0
       ohms_per_square: null
       port_orientation1: null
       port_orientation2: null
diff --git a/tests/test_netlists/test_netlists_straight_heater_metal_.yml b/tests/test_netlists/test_netlists_straight_heater_metal_.yml
index 1dbfb3f8..a55d6813 100644
--- a/tests/test_netlists/test_netlists_straight_heater_metal_.yml
+++ b/tests/test_netlists/test_netlists_straight_heater_metal_.yml
@@ -9,7 +9,7 @@ instances:
       port_name1: o1
       port_name2: o2
       ports_map: null
-      sequence: _-UHUHUHUHUHUHUHUH-_
+      sequence: _-UHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUHUH-_
       start_orientation: 0.0
       symbol_to_component:
         '-':
@@ -17,7 +17,7 @@ instances:
           module: ubcpdk.components
           settings:
             cross_section: xs_sc_heater_metal
-            length: 15.9
+            length: 2.4
             npoints: 2
         - o1
         - o2
@@ -26,7 +26,7 @@ instances:
           module: ubcpdk.components
           settings:
             cross_section: xs_sc_heater_metal
-            length: 6.0
+            length: 0
             npoints: 2
         - o1
         - o2
@@ -35,7 +35,7 @@ instances:
           module: ubcpdk.components
           settings:
             cross_section: xs_sc_heater_metal
-            length: 30.0
+            length: 5
             npoints: 2
         - o1
         - o2
@@ -188,7 +188,7 @@ instances:
       vias:
       - null
       - null
-name: straight_heater_metal_undercut_with_undercutFalse
+name: straight_heater_metal_undercut_539ff9ab
 placements:
   component_sequence_1:
     mirror: 0
@@ -198,22 +198,22 @@ placements:
   taper_1:
     mirror: 0
     rotation: 0
-    x: -4.905
+    x: -4.9
     y: 0.0
   taper_2:
     mirror: 0
     rotation: 180
-    x: 324.905
+    x: 324.9
     y: 0.0
   via_stack_1:
     mirror: 0
     rotation: 0
-    x: -9.905
+    x: -9.9
     y: 0.0
   via_stack_2:
     mirror: 0
     rotation: 0
-    x: 329.905
+    x: 329.9
     y: 0.0
 ports:
   l_e1: via_stack_1,e1
@@ -234,7 +234,7 @@ warnings:
       - taper_1,o2
       - taper_2,o2
       values:
-      - - 0.095
+      - - 0.1
         - 0.0
-      - - 319.905
+      - - 319.9
         - 0.0