diff --git a/README.textile b/README.textile
index d8ce767..98c9d12 100644
--- a/README.textile
+++ b/README.textile
@@ -9,11 +9,12 @@ License: "GPL":http://www.gnu.org/licenses/gpl.html v3
 Dependencies:
 
 * "Python":http://www.python.org 3
-* "GTK":http://www.gtk.org 3 ("python-gobject":https://live.gnome.org/PyGObject)
+* "GTK":http://www.gtk.org 3 (>= 3.22) ("python-gobject":https://live.gnome.org/PyGObject)
 * "Avahi":http://www.avahi.org (optional)
 * "python-keyring":http://pypi.python.org/pypi/keyring (optional)
 * "python-setuptools":https://pypi.python.org/pypi/setuptools (building)
 
+Additionally a "MPD":http://www.musicpd.org server (version >= 0.21.0) is required at runtime.
 
 h2. Building