diff --git a/Main/migrations/0037_alter_userinfo_telegram_chat_id.py b/Main/migrations/0037_alter_userinfo_telegram_chat_id.py
new file mode 100644
index 0000000..f64d35e
--- /dev/null
+++ b/Main/migrations/0037_alter_userinfo_telegram_chat_id.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.4 on 2022-05-10 20:34
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('Main', '0036_task_memory_limit'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='userinfo',
+            name='telegram_chat_id',
+            field=models.TextField(blank=True, default='', null=True),
+        ),
+    ]
diff --git a/Main/models/userinfo.py b/Main/models/userinfo.py
index 9894b61..483808d 100644
--- a/Main/models/userinfo.py
+++ b/Main/models/userinfo.py
@@ -21,7 +21,7 @@ class UserInfo(models.Model):
     favourite_language_id = models.IntegerField(null=True, blank=True)
     rating = models.IntegerField(default=0)
     user = models.OneToOneField(User, on_delete=models.CASCADE, null=True, blank=True)
-    telegram_chat_id = models.TextField(default="")
+    telegram_chat_id = models.TextField(default="", null=True, blank=True)
     vk_user_id = models.IntegerField(null=True, blank=True)
     notification_solution_result = models.BooleanField(default=False)
     notification_friends = models.BooleanField(default=False)