diff --git a/env-sample b/env-sample
index c41cfbd..c5f0fa1 100644
--- a/env-sample
+++ b/env-sample
@@ -4,7 +4,7 @@ MYSQL_DATABASE=wordpress
 # Only first build
 WP_ROOT=/var/www/html
 WP_URL=http://localhost
-WP_VERSION=4.8.2
+WP_VERSION=4.9.5
 WP_DB_PREFIX=wp_
 WP_ADMIN_USER=root
 WP_ADMIN_PASSWORD=root
diff --git a/wp/wp-content/themes/sampletheme/functions/acf.php b/wp/wp-content/themes/sampletheme/functions/acf.php
new file mode 100644
index 0000000..b91b307
--- /dev/null
+++ b/wp/wp-content/themes/sampletheme/functions/acf.php
@@ -0,0 +1,58 @@
+<?php
+
+class AcfCustomJsonData
+{
+  private static $acf_custom_json_data;
+
+  private static $theme_path = '/inc/acf-json';
+
+  private function __construct()
+  {
+  }
+
+  public static function get_json_data_path($default_path)
+  {
+    $path = get_stylesheet_directory() . self::$theme_path;
+    if (!file_exists($path)) mkdir($path);
+    return $path;
+  }
+}
+
+/**
+ * acf設定を保存
+ * 2018.05.12
+ * author:ryota moiryama
+ */
+function my_acf_json_save_point($path)
+{
+  return AcfCustomJsonData::get_json_data_path($path);
+}
+//add_filter('acf/settings/save_json', 'my_acf_json_save_point');
+
+/**
+ * acf設定を呼び出し
+ * 2018.05.12
+ * author:ryota moiryama
+ */
+function my_acf_json_load_point($paths)
+{
+  return array(AcfCustomJsonData::get_json_data_path($paths));
+}
+//add_filter('acf/settings/load_json', 'my_acf_json_load_point');
+
+/**
+ * ダッシュボードにオプションページを設置
+ * 2018.05.12
+ * author:ryota moiryama
+ */
+function display_acf_option_page()
+{
+  if (function_exists('acf_add_options_page')) {
+    acf_add_options_page(array(
+      'page_title' => "OPTION",
+      'menu_title' => "OPTION",
+      'menu_slug' => 'acf-options',
+    ));
+  }
+}
+//add_action('init','display_acf_option_page');
\ No newline at end of file