diff --git a/accounts/migrations/0005_accountconfirmchallenge_created_at.py b/accounts/migrations/0005_accountconfirmchallenge_created_at.py
new file mode 100644
index 0000000..0bd9dca
--- /dev/null
+++ b/accounts/migrations/0005_accountconfirmchallenge_created_at.py
@@ -0,0 +1,22 @@
+# Generated by Django 4.0.3 on 2022-06-11 10:38
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("accounts", "0004_accountconfirmchallenge_public_ref_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="accountconfirmchallenge",
+            name="created_at",
+            field=models.DateTimeField(
+                auto_now_add=True, default=django.utils.timezone.now
+            ),
+            preserve_default=False,
+        ),
+    ]
diff --git a/accounts/models.py b/accounts/models.py
index afe76fd..041503f 100644
--- a/accounts/models.py
+++ b/accounts/models.py
@@ -30,6 +30,7 @@ class AccountConfirmChallenge(models.Model):
         default=gen_secret,
         editable=False,
     )
+    created_at = models.DateTimeField(auto_now_add=True, blank=True)
 
     challenge_text = models.CharField(
         "Challenge text",