diff --git a/fir_ser/api/migrations/0004_auto_20210705_1819.py b/fir_ser/api/migrations/0004_auto_20210705_1819.py
new file mode 100644
index 0000000..5ce63cf
--- /dev/null
+++ b/fir_ser/api/migrations/0004_auto_20210705_1819.py
@@ -0,0 +1,22 @@
+# Generated by Django 3.2.3 on 2021-07-05 18:19
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('api', '0003_apps_new_bundle_name'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='appreleaseinfo',
+            name='app_version',
+            field=models.CharField(blank=True, max_length=64, verbose_name='app版本'),
+        ),
+        migrations.AlterField(
+            model_name='appreleaseinfo',
+            name='build_version',
+            field=models.CharField(blank=True, max_length=64, verbose_name='build版本'),
+        ),
+    ]
diff --git a/fir_ser/api/models.py b/fir_ser/api/models.py
index b42b1ce..7c0b904 100644
--- a/fir_ser/api/models.py
+++ b/fir_ser/api/models.py
@@ -155,8 +155,8 @@ class AppReleaseInfo(models.Model):
     is_master = models.BooleanField(verbose_name="是否master版本", default=True)
     release_id = models.CharField(max_length=64, unique=True, verbose_name="release 版本id", db_index=True)
     app_id = models.ForeignKey(to="Apps", on_delete=models.CASCADE, verbose_name="属于哪个APP")
-    build_version = models.CharField(max_length=16, verbose_name="build版本", blank=True)
-    app_version = models.CharField(max_length=16, verbose_name="app版本", blank=True)
+    build_version = models.CharField(max_length=64, verbose_name="build版本", blank=True)
+    app_version = models.CharField(max_length=64, verbose_name="app版本", blank=True)
     release_choices = ((0, 'android'), (1, 'adhoc'), (2, 'Inhouse'), (3, 'unknown'))
     release_type = models.SmallIntegerField(choices=release_choices, default=0, verbose_name="版本类型")
     minimum_os_version = models.CharField(max_length=64, verbose_name="应用可安装的最低系统版本")