diff --git a/zenity.spec b/zenity.spec
index 54235bf..484c29a 100644
--- a/zenity.spec
+++ b/zenity.spec
@@ -10,7 +10,7 @@ Source:		http://download.gnome.org/sources/zenity/2.91/zenity-%{version}.tar.bz2
 
 BuildRequires: gnome-doc-utils >= 0.3.2
 BuildRequires: glib2-devel >= 2.7.3
-BuildRequires: gtk2-devel
+BuildRequires: gtk3-devel
 BuildRequires: libnotify-devel >= 0.4.1
 BuildRequires: scrollkeeper
 BuildRequires: which