diff --git a/cmd/rsampling/main.go b/cmd/rsampling/main.go
index 3e486bc..ce06b08 100644
--- a/cmd/rsampling/main.go
+++ b/cmd/rsampling/main.go
@@ -37,9 +37,12 @@ import (
 	"time"
 )
 
+const Version = "0.2.0"
+
 var (
-	size = flag.Int("n", 16, "number of samples to obtain")
-	seed = flag.Int64("r", int64(time.Now().Nanosecond()), "random seed")
+	size    = flag.Int("n", 16, "number of samples to obtain")
+	seed    = flag.Int64("r", int64(time.Now().Nanosecond()), "random seed")
+	version = flag.Bool("version", false, "show program version")
 )
 
 // Reservoir for strings.
@@ -93,6 +96,10 @@ func (r *Reservoir) Add(s string) {
 
 func main() {
 	flag.Parse()
+	if *version {
+		fmt.Println(Version)
+		os.Exit(0)
+	}
 	rand.Seed(*seed)
 	rr := NewReservoirSize(*size)
 	br := bufio.NewReader(os.Stdin)
diff --git a/packaging/deb/rsampling/DEBIAN/control b/packaging/deb/rsampling/DEBIAN/control
index bcc4475..c396f69 100644
--- a/packaging/deb/rsampling/DEBIAN/control
+++ b/packaging/deb/rsampling/DEBIAN/control
@@ -1,5 +1,5 @@
 Package: rsampling
-Version: 0.1.0
+Version: 0.2.0
 Section: utils
 Priority: optional
 Architecture: amd64
diff --git a/packaging/rpm/rsampling.spec b/packaging/rpm/rsampling.spec
index bab99e9..bb5a40d 100644
--- a/packaging/rpm/rsampling.spec
+++ b/packaging/rpm/rsampling.spec
@@ -1,6 +1,6 @@
 Summary:    Reservoir sampling for the command line.
 Name:       rsampling
-Version:    0.1.0
+Version:    0.2.0
 Release:    0
 License:    GPLv3
 BuildArch:  x86_64