diff --git a/Makefile b/Makefile
index aa36f01..3862fec 100644
--- a/Makefile
+++ b/Makefile
@@ -34,7 +34,7 @@
 	SKYWATER_COMMIT=f70d8ca46961ff92719d8870a18a076370b85f6c
 	export OPEN_PDKS_COMMIT?=0059588eebfc704681dc2368bd1d33d96281d10f
 	export OPENLANE_TAG?=2022.11.19
-	MPW_TAG ?= mpw-8a
+	MPW_TAG ?= mpw-8c
 
 ifeq ($(CARAVEL_LITE),1)
 	CARAVEL_NAME := caravel-lite
@@ -52,7 +52,7 @@
 	SKYWATER_COMMIT=f70d8ca46961ff92719d8870a18a076370b85f6c
 	export OPEN_PDKS_COMMIT?=0059588eebfc704681dc2368bd1d33d96281d10f
 	export OPENLANE_TAG?=2022.11.19
-	MPW_TAG ?= mpw-8a
+	MPW_TAG ?= mpw-8c
 
 ifeq ($(CARAVEL_LITE),1)
 	CARAVEL_NAME := caravel-lite
@@ -68,7 +68,7 @@
 
 ifeq ($(PDK),gf180mcuC)
 
-	MPW_TAG ?= gfmpw-0a
+	MPW_TAG ?= gfmpw-0b
 	CARAVEL_NAME := caravel
 	CARAVEL_REPO := https://github.com/efabless/caravel-gf180mcu
 	CARAVEL_TAG := $(MPW_TAG)
@@ -332,4 +332,10 @@
 	@$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-typ
 	@$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-fast
 	@$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-slow
+	@echo =================================================Summary=================================================
+	@find $(PROJECT_ROOT)/signoff/caravel/openlane-signoff -name "*-summary.rpt" | head -n1 \
+		| xargs tail -n2 | head -n1
+	@find $(PROJECT_ROOT)/signoff/caravel/openlane-signoff -name "*-summary.rpt" \
+		| xargs -I {} tail -n1 "{}"
+	@echo =========================================================================================================
 	@echo "You can find results for all corners in $(CUP_ROOT)/signoff/caravel/openlane-signoff/timing/"