update the PDK commits

Makefile

diff --git a/Makefile b/Makefile
index 525b3f8..db1c3fa 100644
--- a/Makefile
+++ b/Makefile
@@ -11,8 +11,8 @@
 STD_CELL_LIBRARY ?= sky130_fd_sc_hd
 SPECIAL_VOLTAGE_LIBRARY ?= sky130_fd_sc_hvl
 IO_LIBRARY ?= sky130_fd_io
-SKYWATER_COMMIT ?= ca58d58c07ab2dac53488df393da633fd5fb9a02
-OPEN_PDKS_COMMIT ?= b427e3bd10dcdc36891ae270a1ef0bd02602c553
+SKYWATER_COMMIT ?= 3d7617a1acb92ea883539bcf22a632d6361a5de4
+OPEN_PDKS_COMMIT ?= 8688323e12530b9ced04b8053a6c4699b28402fc
 
 .DEFAULT_GOAL := ship
 # We need portable GDS_FILE pointers...