Makefile: switch to wip pre-check

Makefile

diff --git a/Makefile b/Makefile
index 61ed5c5..a8eea58 100644
--- a/Makefile
+++ b/Makefile
@@ -74,6 +74,7 @@
 	#OPENLANE_TAG=ddfeab57e3e8769ea3d40dda12be0460e09bb6d9
 	export OPEN_PDKS_COMMIT?=0059588eebfc704681dc2368bd1d33d96281d10f
 	export OPENLANE_TAG?=2022.10.20
+	MPW_PRECHECK_TAG := EF-3614
 
 endif
 
@@ -212,7 +213,7 @@
 # Default installs to the user home directory, override by "export PRECHECK_ROOT=<precheck-installation-path>"
 .PHONY: precheck
 precheck:
-	@git clone --depth=1 --branch $(MPW_TAG) https://github.com/efabless/mpw_precheck.git $(PRECHECK_ROOT)
+	@git clone --depth=1 --branch $(MPW_PRECHECK_TAG) https://github.com/efabless/mpw_precheck.git $(PRECHECK_ROOT)
 	@docker pull efabless/mpw_precheck:latest
 
 .PHONY: run-precheck