diff --git a/plugins/bc-custom-content/config/Migrations/20230117094760_CreateCustomFields.php b/plugins/bc-custom-content/config/Migrations/20230117094760_CreateCustomFields.php
index fcaa4f86ea..e5fffae6a9 100644
--- a/plugins/bc-custom-content/config/Migrations/20230117094760_CreateCustomFields.php
+++ b/plugins/bc-custom-content/config/Migrations/20230117094760_CreateCustomFields.php
@@ -82,7 +82,7 @@ public function up(): void
                 'limit' => null,
                 'null' => true,
             ])
-            ->addColumn('max_length', 'boolean', [
+            ->addColumn('max_length', 'integer', [
                 'default' => false,
                 'limit' => null,
                 'null' => true,
diff --git a/plugins/bc-custom-content/config/Migrations/20240203000000_AlterMaxLengthOnCustomFields.php b/plugins/bc-custom-content/config/Migrations/20240203000000_AlterMaxLengthOnCustomFields.php
index 36105e0291..29451dd50b 100755
--- a/plugins/bc-custom-content/config/Migrations/20240203000000_AlterMaxLengthOnCustomFields.php
+++ b/plugins/bc-custom-content/config/Migrations/20240203000000_AlterMaxLengthOnCustomFields.php
@@ -11,13 +11,18 @@ class AlterMaxLengthOnCustomFields extends BcMigration
      */
     public function change()
     {
-        $this->table('custom_fields')
-            ->changeColumn('max_length', 'integer', [
-                'default' => null,
-                'limit' => null,
-                'null' => true,
-            ])
-            ->update();
+        // 2024/02/27 ryuring
+        // PostgreSQLのカラム変更ができないため、20230117094760_CreateCustomFields.php にて直接変更し
+        // こちらでは何もしないように調整
+        // phinxでの管理に影響する可能性があるため削除しないおく
+
+//        $this->table('custom_fields')
+//            ->changeColumn('max_length', 'integer', [
+//                'default' => null,
+//                'limit' => null,
+//                'null' => true,
+//            ])
+//            ->update();
     }
 
 }