diff --git a/go/webterm/cli.go b/go/webterm/cli.go
index ee54f47..9e734f6 100644
--- a/go/webterm/cli.go
+++ b/go/webterm/cli.go
@@ -48,7 +48,7 @@ func RunCLI(args []string) error {
 		return err
 	}
 	if showVersion {
-		_, _ = fmt.Fprintln(os.Stdout, "0.0.0")
+		_, _ = fmt.Fprintln(os.Stdout, Version)
 		return nil
 	}
 
diff --git a/go/webterm/constants.go b/go/webterm/constants.go
index e5a7616..93d4146 100644
--- a/go/webterm/constants.go
+++ b/go/webterm/constants.go
@@ -7,6 +7,7 @@ import (
 )
 
 const (
+	Version               = "1.3.0"
 	DefaultHost           = "0.0.0.0"
 	DefaultPort           = 8080
 	DefaultTheme          = "xterm"
diff --git a/go/webterm/terminal_session.go b/go/webterm/terminal_session.go
index aa14c05..f8612b5 100644
--- a/go/webterm/terminal_session.go
+++ b/go/webterm/terminal_session.go
@@ -73,7 +73,7 @@ func (s *TerminalSession) Open(width, height int) error {
 		return errors.New("empty command")
 	}
 	cmd := exec.Command(argv[0], argv[1:]...)
-	cmd.Env = append(os.Environ(), "TERM_PROGRAM=webterm-go", "TERM_PROGRAM_VERSION=0.0.0")
+	cmd.Env = append(os.Environ(), "TERM_PROGRAM=webterm-go", "TERM_PROGRAM_VERSION="+Version)
 	file, err := pty.StartWithSize(cmd, &pty.Winsize{Cols: uint16(width), Rows: uint16(height)})
 	if err != nil {
 		return err