diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index e93c42c..1e66a60 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -10,6 +10,16 @@ Wed Nov 22 10:02:35 UTC 2017 - wr@rosenauer.org
   * CVE-2017-7826
     Memory safety bugs fixed in Firefox 57 and Firefox ESR 52.5
 
+-------------------------------------------------------------------
+Fri Nov 10 22:12:18 UTC 2017 - zaitor@opensuse.org
+ 
+- Drop obsolete libgnomeui-devel BuildRequires: No longer needed.
+- Add explicit pkgconfig(gconf-2.0), pkgconfig(gobject-2.0),
+  pkgconfig(gtk+-2.0), pkgconfig(gtk+-unix-print-2.0),
+  pkgconfig(glib-2.0), pkgconfig(gobject-2.0) and
+  pkgconfig(gdk-x11-2.0) BuildRequires: Previously pulled in by
+  libgnomeui-devel, and is what configure really checks for.
+
 -------------------------------------------------------------------
 Wed Oct  4 09:18:39 UTC 2017 - astieger@suse.com
 
diff --git a/MozillaThunderbird.spec b/MozillaThunderbird.spec
index 454deac..553e760 100644
--- a/MozillaThunderbird.spec
+++ b/MozillaThunderbird.spec
@@ -39,7 +39,6 @@ BuildRequires:  gcc-c++
 BuildRequires:  hunspell-devel
 BuildRequires:  libXcomposite-devel
 BuildRequires:  libcurl-devel
-BuildRequires:  libgnomeui-devel
 BuildRequires:  libidl-devel
 BuildRequires:  libnotify-devel
 BuildRequires:  mozilla-nspr-devel >= 4.13.1
@@ -52,6 +51,13 @@ BuildRequires:  xorg-x11-libXt-devel
 BuildRequires:  xz
 BuildRequires:  yasm
 BuildRequires:  zip
+BuildRequires:  pkgconfig(gconf-2.0) >= 1.2.1
+BuildRequires:  pkgconfig(gobject-2.0)
+BuildRequires:  pkgconfig(gtk+-2.0) >= 2.18.0
+BuildRequires:  pkgconfig(gtk+-unix-print-2.0)
+BuildRequires:  pkgconfig(glib-2.0) >= 2.22
+BuildRequires:  pkgconfig(gobject-2.0)
+BuildRequires:  pkgconfig(gdk-x11-2.0)
 BuildRequires:  pkgconfig(libffi)
 BuildRequires:  pkgconfig(libpulse)
 %if %{with mozilla_tb_valgrind}