diff --git a/README b/README
index 2dd2c9f..dd2a18c 100644
--- a/README
+++ b/README
@@ -4,7 +4,7 @@ UPower
 
 Requirements:
 
-   glib-2.0             >= 2.34.0
+   glib-2.0             >= 2.66.0
    gio-2.0              >= 2.16.1
    gudev-1.0            >= 235    (Linux)
    libimobiledevice-1.0 >= 0.9.7  (optional)
diff --git a/meson.build b/meson.build
index 1528611..9c67166 100644
--- a/meson.build
+++ b/meson.build
@@ -30,7 +30,7 @@ cdata.set_quoted('PACKAGE_VERSION', meson.project_version())
 cdata.set_quoted('VERSION', meson.project_version())
 cdata.set_quoted('PACKAGE_SYSCONF_DIR', get_option('sysconfdir'))
 
-glib_min_version = '2.58'
+glib_min_version = '2.66'
 
 glib_version_def = 'GLIB_VERSION_@0@_@1@'.format(
     glib_min_version.split('.')[0], glib_min_version.split('.')[1])