diff --git a/users/migrations/0019_auto_20230810_1927.py b/users/migrations/0019_auto_20230810_1927.py
new file mode 100644
index 0000000..cdfb658
--- /dev/null
+++ b/users/migrations/0019_auto_20230810_1927.py
@@ -0,0 +1,32 @@
+# Generated by Django 3.2.20 on 2023-08-10 09:27
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("users", "0018_auto_20230810_1754"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="user",
+            name="nostr_key",
+            field=models.CharField(
+                blank=True,
+                help_text="A Nostr public key in 32-byte hex format (64 characters)",
+                max_length=64,
+                null=True,
+                unique=True,
+            ),
+        ),
+        migrations.AlterField(
+            model_name="user",
+            name="nostr_relays",
+            field=models.JSONField(
+                blank=True,
+                default=list,
+                help_text="An array of Nostr relay URLs that this public key posts to",
+            ),
+        ),
+    ]
diff --git a/users/models.py b/users/models.py
index 8f1f033..787a136 100644
--- a/users/models.py
+++ b/users/models.py
@@ -82,11 +82,11 @@ class User(ModelMeta, AbstractUser):
     )
 
     nostr_key = models.CharField(
-        max_length=32,
+        max_length=64,
         unique=True,
         blank=True,
         null=True,
-        help_text="A Nostr public key in 32-byte hex format",
+        help_text="A Nostr public key in 32-byte hex format (64 characters)",
     )
     nostr_relays = models.JSONField(
         default=list,