Update Makefile
Update Openlane commit for MPW-6
diff --git a/Makefile b/Makefile
index 150e485..2e09de1 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,7 @@
export SKYWATER_COMMIT=c094b6e83a4f9298e47f696ec5a7fd53535ec5eb
export OPEN_PDKS_COMMIT?=7519dfb04400f224f140749cda44ee7de6f5e095
export PDK_MAGIC_COMMIT=7d601628e4e05fd17fcb80c3552dacb64e9f6e7b
-export OPENLANE_TAG=2022.02.23_02.50.41
+export OPENLANE_TAG=2022.04.08_02.45.18
# Install lite version of caravel, (1): caravel-lite, (0): caravel
CARAVEL_LITE?=1