diff --git a/Makefile b/Makefile
index baf1d56..56320b9 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,11 @@
 BINARY_NAME := brew-sync
 GO := go
 GOFLAGS :=
-LDFLAGS :=
+
+# Version info injected at build time
+VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo dev)
+COMMIT  := $(shell git rev-parse --short HEAD 2>/dev/null || echo unknown)
+LDFLAGS := -X brew-sync/cmd.Version=$(VERSION) -X brew-sync/cmd.Commit=$(COMMIT)
 
 # Build output directory
 BUILD_DIR := build
diff --git a/cmd/root.go b/cmd/root.go
index b97c2c0..a9e9584 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -12,6 +12,12 @@ import (
 	"github.com/spf13/cobra"
 )
 
+// Version info set via ldflags at build time.
+var (
+	Version = "dev"
+	Commit  = "unknown"
+)
+
 var (
 	// Global flag values accessible by subcommands.
 	cfgFile string
@@ -107,8 +113,9 @@ func getUpdatedBy() string {
 }
 
 var rootCmd = &cobra.Command{
-	Use:   "brew-sync",
-	Short: "Synchronize Homebrew packages across machines",
+	Use:     "brew-sync",
+	Short:   "Synchronize Homebrew packages across machines",
+	Version: Version + " (" + Commit + ")",
 	Long: `brew-sync is a CLI tool that wraps Homebrew to synchronize installed
 packages (formulae and casks) across multiple machines.