diff --git a/.github/workflows/build-by-commit.yml b/.github/workflows/build-by-commit.yml
index 1e3408b..e630fa8 100644
--- a/.github/workflows/build-by-commit.yml
+++ b/.github/workflows/build-by-commit.yml
@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [ master ]
 
+env:
+  ARTIFACT_VERSION: ${{ github.ref }}
+
 jobs:
 
   build:
diff --git a/.github/workflows/build-by-tag.yml b/.github/workflows/build-by-tag.yml
index 2c90144..b261d73 100644
--- a/.github/workflows/build-by-tag.yml
+++ b/.github/workflows/build-by-tag.yml
@@ -5,6 +5,9 @@ on:
     tags:
       - 'v[0-9]+.[0-9]+.[0-9]+'
 
+env:
+  ARTIFACT_VERSION: ${{ github.ref }}
+
 jobs:
 
   build:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 52d33c3..1a0946f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Release history
 
+## v0.2.2
+
+- Automate binary version
+
 ## v0.2.1
 
 - Improve help tips
diff --git a/Makefile b/Makefile
index 52f66cb..b523236 100644
--- a/Makefile
+++ b/Makefile
@@ -21,6 +21,7 @@ COMMIT    := $(shell git rev-parse HEAD)
 VERSION   ?= $(shell git describe --always --tags)
 GOOS      ?= $(shell go env GOOS)
 GOPATH    ?= $(shell go env GOPATH)
+ARTIFACT_VERSION ?= local
 
 BUILDDIR   := $(shell pwd)/out
 PLATFORMS  ?= darwin/amd64 darwin/arm64 linux/amd64
@@ -66,12 +67,12 @@ all: lint build deploy
 .PHONY: dev
 dev: CGO_ENABLED := 1
 dev:
-	go build -race -o $(PROJECT) cmd/$(PROJECT)/main.go
+	go build -race -o $(PROJECT) -ldflags="-X main.Version=$(ARTIFACT_VERSION)" cmd/$(PROJECT)/main.go
 
 .PHONY: build
 build: $(BUILDDIR)
 	cd cmd/$(PROJECT) && \
-	GOFLAGS="-trimpath" gox -osarch="$(PLATFORMS)" -output="$(BUILDDIR)/$(PROJECT)-{{.OS}}-{{.Arch}}" && \
+	GOFLAGS="-trimpath" gox -ldflags="-X main.Version=$(ARTIFACT_VERSION)" -osarch="$(PLATFORMS)" -output="$(BUILDDIR)/$(PROJECT)-{{.OS}}-{{.Arch}}" && \
 	cd ../..
 
 .PHONY: lint
diff --git a/cmd/kubectl-nsenter/main.go b/cmd/kubectl-nsenter/main.go
index dd2bb31..ac48eb3 100644
--- a/cmd/kubectl-nsenter/main.go
+++ b/cmd/kubectl-nsenter/main.go
@@ -10,10 +10,12 @@ import (
 	"time"
 )
 
+var Version = "local"
+
 func main() {
 	app := &cli.App{
 		Name:     "kubectl-nsenter",
-		Version:  "v0.2.1",
+		Version:  Version,
 		Compiled: time.Now(),
 		Authors: []*cli.Author{
 			{