diff --git a/openroad/pdngen_sram.tcl b/openroad/pdngen_sram.tcl
index 924c985..3972716 100644
--- a/openroad/pdngen_sram.tcl
+++ b/openroad/pdngen_sram.tcl
@@ -1,5 +1,5 @@
 ####################################
 # grid for: sky130_sram_*
 ####################################
-define_pdn_grid -name {SRAM} -voltage_domains {CORE} -macro -cells "sky130_sram_*" -halo "2.0 2.0 2.0 2.0"
+define_pdn_grid -name {SRAM} -voltage_domains {CORE} -macro -cells "sky130_sram_*" -halo "1.0 1.0 1.0 1.0"
 add_pdn_connect -grid {SRAM} -layers {met3 met4}