diff --git a/Makefile b/Makefile
index 983abb7..3654a98 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ CUP_ROOT?=$(PWD)
 
 SKYWATER_COMMIT=f70d8ca46961ff92719d8870a18a076370b85f6c
 export OPEN_PDKS_COMMIT?=6d4d11780c40b20ee63cc98e645307a9bf2b2ab8
-export PDK?=sky130A
+export PDK?=sky130B
 export PDKPATH?=$(PDK_ROOT)/$(PDK)
 # Install lite version of caravel, (1): caravel-lite, (0): caravel
 CARAVEL_LITE?=1