Further map setup

build.gradle

@@ -18,13 +18,13 @@
  */
 
 buildscript {
-    ext.gradle_version = '4.0.0'
+    ext.gradle_version = '4.0.1'
     ext.gradle_plugin_version = '1.3.72'
     ext.material_version = '1.1.0'
     ext.app_compat_version = '1.1.0'
     ext.support_lib_version = '1.0.0'
     ext.constraint_layout_version = '1.1.3'
-    ext.ktx_version = '1.3.0'
+    ext.ktx_version = '1.3.1'
     ext.preference_version = '1.1.1'
     ext.navigation_version = '2.3.0'
     ext.lifecycle_version = '2.2.0'