Updated again, as I still had the sky130_fd_io library branch I
was doing the fix on checked out.  The references are now
correct.

gf180mcu/gf180mcu.json

diff --git a/gf180mcu/gf180mcu.json b/gf180mcu/gf180mcu.json
index dc8b668..68f53d2 100644
--- a/gf180mcu/gf180mcu.json
+++ b/gf180mcu/gf180mcu.json
@@ -96,7 +96,7 @@
         "magic": "MAGIC_COMMIT"
     },
     "reference": {
-        "open_pdks": "228083a99d4b9963c256f39d8d323deb8fd463ac",
+        "open_pdks": "bb56b62f00efee618141e8373b7ebad721a3b45b",
         "magic": "67c6ed939514e537773f9f01cc2ecca5c3400c44",
         "gf180mcu_pdk": "a897aa30369d3bcec87d9d50ce9b01f320f854ef",
         "gf180mcu_fd_pr": "216e518bf74c8bbcce31ba06802000de998fe3f0",

sky130/sky130.json

diff --git a/sky130/sky130.json b/sky130/sky130.json
index b67461f..76f11a2 100644
--- a/sky130/sky130.json
+++ b/sky130/sky130.json
@@ -94,10 +94,10 @@
         "magic": "MAGIC_COMMIT"
     },
     "reference": {
-        "open_pdks": "228083a99d4b9963c256f39d8d323deb8fd463ac",
+        "open_pdks": "bb56b62f00efee618141e8373b7ebad721a3b45b",
         "magic": "67c6ed939514e537773f9f01cc2ecca5c3400c44",
         "sky130_fd_pr": "403964dc7f9cca5ec1a8cc7b4f2a6f532b781676",
-        "sky130_fd_io": "3156656ea72293ef2cb2ea9a9560d9e97e306a26",
+        "sky130_fd_io": "b0c377d9c91b4152e0edd3a766a19185df819888",
         "sky130_fd_sc_hs": "a9f2ed0471c3f939a7bacc7ecca0a6e1277bb589",
         "sky130_fd_sc_ms": "29650994547dd83610ccd0a29bae14d665a9e556",
         "sky130_fd_sc_ls": "4283919deb7eb4ed195c2b6e95431a812491f6d0",