diff --git a/migrations/20241001150505-update-asset-fields-to-text.js b/migrations/20241001150505-update-asset-fields-to-text.js
new file mode 100644
index 0000000..fc9500b
--- /dev/null
+++ b/migrations/20241001150505-update-asset-fields-to-text.js
@@ -0,0 +1,68 @@
+'use strict';
+
+/** @type {import('sequelize-cli').Migration} */
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    await queryInterface.changeColumn('assets', 'logo', {
+      type: Sequelize.TEXT,
+      allowNull: true,
+    });
+
+    await queryInterface.changeColumn('assets', 'price_url', {
+      type: Sequelize.TEXT,
+      allowNull: true,
+    });
+
+    await queryInterface.changeColumn('assets', 'ticker', {
+      type: Sequelize.TEXT,
+      allowNull: true,
+    });
+
+    await queryInterface.changeColumn('assets', 'full_name', {
+      type: Sequelize.TEXT,
+      allowNull: true,
+    });
+
+    await queryInterface.changeColumn('assets', 'total_max_supply', {
+      type: Sequelize.TEXT,
+      allowNull: true,
+    });
+
+    await queryInterface.changeColumn('assets', 'current_supply', {
+      type: Sequelize.TEXT,
+      allowNull: true,
+    });
+  },
+
+  down: async (queryInterface, Sequelize) => {
+    await queryInterface.changeColumn('assets', 'logo', {
+      type: Sequelize.STRING,
+      allowNull: true,
+    });
+
+    await queryInterface.changeColumn('assets', 'price_url', {
+      type: Sequelize.STRING,
+      allowNull: true,
+    });
+
+    await queryInterface.changeColumn('assets', 'ticker', {
+      type: Sequelize.STRING,
+      allowNull: true,
+    });
+
+    await queryInterface.changeColumn('assets', 'full_name', {
+      type: Sequelize.STRING,
+      allowNull: true,
+    });
+
+    await queryInterface.changeColumn('assets', 'total_max_supply', {
+      type: Sequelize.STRING,
+      allowNull: true,
+    });
+
+    await queryInterface.changeColumn('assets', 'current_supply', {
+      type: Sequelize.STRING,
+      allowNull: true,
+    });
+  }
+};
diff --git a/server/schemes/Asset.ts b/server/schemes/Asset.ts
index a37a582..d99fad1 100644
--- a/server/schemes/Asset.ts
+++ b/server/schemes/Asset.ts
@@ -25,14 +25,14 @@ Asset.init(
         id: { type: DataTypes.INTEGER, primaryKey: true, autoIncrement: true },
 
         asset_id: { type: DataTypes.STRING, allowNull: true },
-        logo: { type: DataTypes.STRING, allowNull: true },
-        price_url: { type: DataTypes.STRING, allowNull: true },
-        ticker: { type: DataTypes.STRING, allowNull: true },
-        full_name: { type: DataTypes.STRING, allowNull: true },
-        total_max_supply: { type: DataTypes.STRING, allowNull: true },
-        current_supply: { type: DataTypes.STRING, allowNull: true },
+        logo: { type: DataTypes.TEXT, allowNull: true },
+        price_url: { type: DataTypes.TEXT, allowNull: true },
+        ticker: { type: DataTypes.TEXT, allowNull: true },
+        full_name: { type: DataTypes.TEXT, allowNull: true },
+        total_max_supply: { type: DataTypes.TEXT, allowNull: true },
+        current_supply: { type: DataTypes.TEXT, allowNull: true },
         decimal_point: { type: DataTypes.INTEGER, allowNull: true },
-        meta_info: { type: DataTypes.STRING, allowNull: true },
+        meta_info: { type: DataTypes.TEXT, allowNull: true },
         price: { type: DataTypes.INTEGER, allowNull: true }
     },
     {
diff --git a/server/server.ts b/server/server.ts
index dbc2a6e..98320ba 100644
--- a/server/server.ts
+++ b/server/server.ts
@@ -403,8 +403,6 @@ const requestsLimiter = rateLimit({
             raw: true,
         });
 
-        fs.writeFileSync('charts.json', JSON.stringify(charts, null, 2));
-
         if (!chart) {
             return res.status(400).json({ error: 'Invalid parameters' });
         }