diff --git a/libdazzle.spec b/libdazzle.spec
index fadd8ec..f9c9366 100644
--- a/libdazzle.spec
+++ b/libdazzle.spec
@@ -1,3 +1,5 @@
+%global glib2_version 2.55.0
+
 Name:           libdazzle
 Version:        3.27.3
 Release:        1%{?dist}
@@ -14,9 +16,9 @@ BuildRequires:  gtk-doc
 BuildRequires:  meson
 BuildRequires:  vala
 
-BuildRequires:  pkgconfig(gio-2.0)
-BuildRequires:  pkgconfig(glib-2.0)
-BuildRequires:  pkgconfig(gmodule-2.0)
+BuildRequires:  pkgconfig(gio-2.0) >= %{glib2_version}
+BuildRequires:  pkgconfig(glib-2.0) >= %{glib2_version}
+BuildRequires:  pkgconfig(gmodule-2.0) >= %{glib2_version}
 BuildRequires:  pkgconfig(gobject-introspection-1.0)
 BuildRequires:  pkgconfig(gtk+-3.0)
 
@@ -25,6 +27,7 @@ BuildRequires:  dbus
 BuildRequires:  xorg-x11-server-Xvfb
 BuildRequires:  words
 
+Requires:       glib2%{?_isa} >= %{glib2_version}
 
 %description
 libdazzle is a collection of fancy features for GLib and Gtk+ that aren't quite
@@ -89,6 +92,7 @@ dbus-run-session -- xvfb-run -w 10 ninja test %{__ninja_common_opts} -C %{_vpath
 %changelog
 * Tue Dec 19 2017 Kalev Lember <klember@redhat.com> - 3.27.3-1
 - Update to 3.27.3
+- Set minimum required glib version
 
 * Tue Oct  3 2017 Yanko Kaneti <yaneti@declera.com> - 3.26.1-1
 - Update to 3.26.1