[DOC] slightly improved pdk installation.
diff --git a/Makefile b/Makefile
index 9fd4714..76a245e 100644
--- a/Makefile
+++ b/Makefile
@@ -100,6 +100,7 @@
 .PHONY: skywater-pdk
 skywater-pdk: check-env $(PDK_ROOT)/skywater-pdk
 	cd $(PDK_ROOT)/skywater-pdk && \
+		git checkout master && git pull && \
 		git checkout -qf $(SKYWATER_COMMIT)
 
 .PHONY: skywater-library
@@ -117,6 +118,7 @@
 .PHONY: open_pdks
 open_pdks: check-env $(PDK_ROOT)/open_pdks
 	cd $(PDK_ROOT)/open_pdks && \
+		git checkout master && git pull && \
 		git checkout -qf $(OPEN_PDKS_COMMIT)
 
 .PHONY: build-pdk