diff --git a/Makefile b/Makefile
index 3ce913a..354bc9c 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,7 @@
 CARAVEL_LITE?=1
 
 # PDK switch varient
-export PDK?=sky130B
+export PDK?=sky130A
 #export PDK?=gf180mcuC
 export PDKPATH?=$(PDK_ROOT)/$(PDK)