diff --git a/configure.ac b/configure.ac
index 92b5e6bfd6..a725893ae8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -64,7 +64,7 @@ m4_define([gegl_micro_version], [30])
 m4_define([gegl_required_version],
           [gegl_major_minor_version.gegl_micro_version])
 m4_define([gexiv2_required_version], [0.10.6])
-m4_define([glib_required_version], [2.56.2])
+m4_define([glib_required_version], [2.68.0])
 m4_define([gtk_mac_integration_required_version], [2.0.0])
 m4_define([gtk_required_version], [3.22.29])
 m4_define([gtkdoc_required_version], [1.0])
diff --git a/meson.build b/meson.build
index 15dafa5610..37ece74f2e 100644
--- a/meson.build
+++ b/meson.build
@@ -345,7 +345,7 @@ gio               = dependency('gio-2.0')
 gio_specific_name = platform_windows ? 'gio-windows-2.0' : 'gio-unix-2.0'
 gio_specific      = dependency(gio_specific_name)
 
-glib_minver       = '2.56.2'
+glib_minver       = '2.68.0'
 glib              = dependency('glib-2.0',           version: '>='+glib_minver)
 
 conf.set('G_DISABLE_DEPRECATED', glib.version().version_compare('>=2.57'))