diff --git a/dictation_server/db/migrations/030-drop_licenses_history.sql b/dictation_server/db/migrations/030-drop_licenses_history.sql
new file mode 100644
index 0000000..a6da691
--- /dev/null
+++ b/dictation_server/db/migrations/030-drop_licenses_history.sql
@@ -0,0 +1,16 @@
+-- +migrate Up
+DROP TABLE IF EXISTS `licenses_history`;
+
+-- +migrate Down
+CREATE TABLE IF NOT EXISTS `licenses_history` (
+	`id` BIGINT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY COMMENT 'ライセンス履歴ID',
+	`user_id` BIGINT UNSIGNED NOT NULL COMMENT 'ユーザID',
+	`license_id` BIGINT UNSIGNED NOT NULL COMMENT 'ライセンスID',
+	`allocated` BOOLEAN NOT NULL COMMENT '割り当てたか',
+	`executed_at` TIMESTAMP NOT NULL COMMENT '実施日時',
+	`exchange_type` VARCHAR(255) NOT NULL COMMENT 'ライセンス切り替え種別(なし/トライアル→通常/紙→通常)',
+	`created_at` TIMESTAMP DEFAULT now() COMMENT '作成時刻',
+	`created_by` VARCHAR(255) COMMENT '作成者',
+	`updated_at` TIMESTAMP DEFAULT now() on UPDATE now() COMMENT '更新時刻',
+	`updated_by` VARCHAR(255) COMMENT '更新者'
+) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci;
diff --git a/dictation_server/src/repositories/licenses/entity/license.entity.ts b/dictation_server/src/repositories/licenses/entity/license.entity.ts
index 3d3df06..88363ab 100644
--- a/dictation_server/src/repositories/licenses/entity/license.entity.ts
+++ b/dictation_server/src/repositories/licenses/entity/license.entity.ts
@@ -97,26 +97,6 @@ export class License {
   @JoinColumn({ name: 'allocated_user_id' })
   user?: User;
 }
-@Entity({ name: 'licenses_history' })
-export class LicenseHistory {
-  @PrimaryGeneratedColumn()
-  id: number;
-
-  @Column()
-  user_id: number;
-
-  @Column()
-  license_id: number;
-
-  @Column()
-  allocated: boolean;
-
-  @Column()
-  executed_at: Date;
-
-  @Column()
-  exchange_type: string;
-}
 
 @Entity({ name: 'card_license_issue' })
 export class CardLicenseIssue {