-# Recommended GTK version: at least 2.12
-# Recommended Glib version: at least 2.16
-GTK_REQUIRED_VERSION=2.6
-GLIB_REQUIRED_VERSION=2.6
-GTK_DOC_REQUIRED_VERSION=1.9
+GTK_REQUIRED_VERSION=3.2
+GLIB_REQUIRED_VERSION=2.16
+GTK_DOC_REQUIRED_VERSION=1.12