diff --git a/Makefile b/Makefile
index 064db79..4dd9d53 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,14 @@
 .PHONY: test
 test: unit fuzz
 
+.PHONY: bootstrap
+bootstrap:
+	go install github.com/rinchsan/gosimports/cmd/gosimports@v0.3.8
+
 .PHONY: format
 format:
 	gofmt -w .
+	go mod tidy
 	gosimports -w -local github.com/spdx .
 
 .PHONY: unit