diff --git a/flow/scripts/global_place.tcl b/flow/scripts/global_place.tcl
index 0d3f5ca60e..83a3489f40 100644
--- a/flow/scripts/global_place.tcl
+++ b/flow/scripts/global_place.tcl
@@ -2,9 +2,6 @@ utl::set_metrics_stage "globalplace__{}"
 source $::env(SCRIPTS_DIR)/load.tcl
 load_design 3_2_place_iop.odb 2_floorplan.sdc
 
-# Temporary: remove after fixing instability in GPL with multithreading
-set_thread_count 1
-
 set_dont_use $::env(DONT_USE_CELLS)
 
 # set fastroute layer reduction
diff --git a/flow/scripts/global_place_skip_io.tcl b/flow/scripts/global_place_skip_io.tcl
index dd7d87a00f..227b029c03 100644
--- a/flow/scripts/global_place_skip_io.tcl
+++ b/flow/scripts/global_place_skip_io.tcl
@@ -1,7 +1,6 @@
 source $::env(SCRIPTS_DIR)/load.tcl
 load_design 2_floorplan.odb 2_floorplan.sdc
 
-set_thread_count 1
 
 if { [info exists ::env(FLOORPLAN_DEF)] } {
   puts "FLOORPLAN_DEF is set. Skipping global placement without IOs"
diff --git a/tools/OpenROAD b/tools/OpenROAD
index 423009d8e6..28f8d02f6e 160000
--- a/tools/OpenROAD
+++ b/tools/OpenROAD
@@ -1 +1 @@
-Subproject commit 423009d8e671e859b890e90d96ca02172bc1b7de
+Subproject commit 28f8d02f6eb17e8077ea4e29490db20d78ee6ab4