diff --git a/config/app_local.example.php b/config/app_local.example.php
index 8bdb855dd5..9a77d27e6e 100644
--- a/config/app_local.example.php
+++ b/config/app_local.example.php
@@ -91,4 +91,6 @@
             'url' => env('EMAIL_TRANSPORT_DEFAULT_URL', null),
         ],
     ],
+    // thmbnailの解像度を変更する場合
+    // 'resizeResolution' => 72,
 ];
diff --git a/plugins/baser-core/src/Vendor/Imageresizer.php b/plugins/baser-core/src/Vendor/Imageresizer.php
index 41a1d41c95..1f0d7e0e66 100644
--- a/plugins/baser-core/src/Vendor/Imageresizer.php
+++ b/plugins/baser-core/src/Vendor/Imageresizer.php
@@ -129,6 +129,12 @@ function resize($imgPath, $savePath = null, $newWidth = null, $newHeight = null,
             @unlink($savePath);
         }
 
+        // ConfigのresizeResolutionの値があって、デフォルト（96dpi）より小さい場合、解像度を上書きする
+        $resizeResolution = \Cake\Core\Configure::read('resizeResolution');
+        if (!empty($resizeResolution) && (int) $resizeResolution < 96 ){
+            imageresolution($newImage, $resizeResolution, $resizeResolution);
+        }
+
         switch($image_type) {
             case IMAGETYPE_GIF:
                 if ($savePath) {