diff --git a/CHANGELOG.md b/CHANGELOG.md
index 13aaa8f..403df79 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Changelog
 
 ## UNRELEASED
+### Changed
+- Ad Gopenpgp and Xmppsrv version to `--version` output (requires xmppsrv >= 0.3.2).
 
 ## [v0.11.1] 2024-07-11
 ### Changed
diff --git a/main.go b/main.go
index ee3e8b0..12bff0a 100644
--- a/main.go
+++ b/main.go
@@ -19,9 +19,11 @@ import (
 	"strings"
 	"time"
 
-	"github.com/ProtonMail/gopenpgp/v2/crypto" // MIT License
-	"github.com/pborman/getopt/v2"             // BSD-3-Clause
-	"github.com/xmppo/go-xmpp"                 // BSD-3-Clause
+	gopenpgpConst "github.com/ProtonMail/gopenpgp/v2/constants" // MIT License
+	"github.com/ProtonMail/gopenpgp/v2/crypto"                  // MIT License
+	"github.com/pborman/getopt/v2"                              // BSD-3-Clause
+	"github.com/xmppo/go-xmpp"                                  // BSD-3-Clause
+	"salsa.debian.org/mdosch/xmppsrv"                           // BSD-2-Clause
 )
 
 type configuration struct {
@@ -149,6 +151,8 @@ func main() {
 	case *flagVersion:
 		// If requested, show version and quit.
 		fmt.Println("Go-sendxmpp", version)
+		fmt.Println("Xmppsrv library version:", xmppsrv.Version)
+		fmt.Println("Gopenpgp library version:", gopenpgpConst.Version)
 		system := runtime.GOOS + "/" + runtime.GOARCH
 		fmt.Println("System:", system, runtime.Version())
 		fmt.Println("License: BSD-2-clause")