diff --git a/Makefile b/Makefile
index d9fa103..eb0bada 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,8 @@
 .PHONY: default init build install release dep get_deps clean build_amd64 build_386 upx
 
 # https://golang.org/doc/install/source#environment
-GOOS := $(shell go2 env | awk -F= '$$1=="GOOS" {print $$2}' | awk -F '"' '{print $$2}') # 此处 awk 需使用两个 $
-GOARCH := $(shell go2 env | awk -F= '$$1=="GOARCH" {print $$2}' | awk -F '"' '{print $$2}')
+GOOS := $(shell goenv | awk -F= '$$1=="GOOS" {print $$2}' | awk -F '"' '{print $$2}') # 此处 awk 需使用两个 $
+GOARCH := $(shell go env | awk -F= '$$1=="GOARCH" {print $$2}' | awk -F '"' '{print $$2}')
 OSS = darwin dragonfly freebsd linux netbsd openbsd plan9 solaris windows
 PKG =
 # ifeq ($(strip $(GOOS)), windows)
@@ -14,31 +14,31 @@ default:
 	@echo "available target: build install release clean build_amd64 build_386 upx"
 
 build:
-	@ go2 build -ldflags "-s -w" -o dist/hc_$(strip $(GOOS))_$(strip $(if \
+	@ go build -ldflags "-s -w" -o dist/hc_$(strip $(GOOS))_$(strip $(if \
     $(findstring windows,$(GOOS)),\
     $(strip $(GOARCH)).exe,\
     $(strip $(GOARCH))\
 	))
 
 install:
-	go2 install -ldflags "-s -w"
+	go install -ldflags "-s -w"
 
 release: build_amd64 build_386 upx
 
 clean:
-	go2 clean -i
+	go clean -i
 	rm -rf dist/hc* hc* hex-convert
 
 build_amd64:
 	@ $(foreach OS,\
 	$(OSS),\
-	$(shell CGO_ENABLED=0 GOOS=$(OS) GOARCH=amd64 go2 build -ldflags "-s -w" -o dist/hc_$(OS)_amd64$(if $(findstring windows,$(OS)),.exe)))
+	$(shell CGO_ENABLED=0 GOOS=$(OS) GOARCH=amd64 go build -ldflags "-s -w" -o dist/hc_$(OS)_amd64$(if $(findstring windows,$(OS)),.exe)))
 	@ echo done
 
 build_386:
 	@ $(foreach OS,\
 	$(OSS),\
-	$(shell CGO_ENABLED=0 GOOS=$(OS) GOARCH=386 go2 build -ldflags "-s -w" -o dist/hc_$(OS)_386$(if $(findstring windows,$(OS)),.exe)))
+	$(shell CGO_ENABLED=0 GOOS=$(OS) GOARCH=386 go build -ldflags "-s -w" -o dist/hc_$(OS)_386$(if $(findstring windows,$(OS)),.exe)))
 	@ echo done
 
 # 压缩。需要安装 https://github.com/upx/upx