diff --git a/upcounter/chipflow.toml b/upcounter/chipflow.toml
index 1460900..44b5ad3 100644
--- a/upcounter/chipflow.toml
+++ b/upcounter/chipflow.toml
@@ -10,13 +10,16 @@ default = 'sys_clk'
 [chipflow.resets]
 default = 'sys_rst_n'
 
+# TEMP: switched from ihp_sg13g2/block to gf180mcu/pga144 to exercise
+# the gf180mcu LVS layermap fix + drc_klayout plugin end-to-end in the
+# cloud build. Revert this file before merging.
 [chipflow.silicon]
-process = "ihp_sg13g2"
-package = "block"
+process = "gf180mcu"
+package = "pga144"
 
-[chipflow.silicon.block]
-width = 5
-height = 5
+# TEMP: enable the manifest DRC gate so drc_klayout actually runs.
+[chipflow.backend.check.drc]
+enable = true
 
 [chipflow.silicon.pads]
 # System (no fixed locations for blocks — auto-allocated)