diff --git a/src/web/db.sqlite3 b/src/web/db.sqlite3
index 28e61ba..5d2ce5a 100644
Binary files a/src/web/db.sqlite3 and b/src/web/db.sqlite3 differ
diff --git a/src/web/tracker/migrations/0006_alter_session_duration_calculated_and_more.py b/src/web/tracker/migrations/0006_alter_session_duration_calculated_and_more.py
new file mode 100644
index 0000000..939b8b0
--- /dev/null
+++ b/src/web/tracker/migrations/0006_alter_session_duration_calculated_and_more.py
@@ -0,0 +1,28 @@
+# Generated by Django 4.1.4 on 2022-12-31 13:26
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("tracker", "0005_alter_purchase_date_refunded"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="session",
+            name="duration_calculated",
+            field=models.DurationField(blank=True, null=True),
+        ),
+        migrations.AlterField(
+            model_name="session",
+            name="duration_manual",
+            field=models.DurationField(blank=True, null=True),
+        ),
+        migrations.AlterField(
+            model_name="session",
+            name="note",
+            field=models.TextField(blank=True, null=True),
+        ),
+    ]
diff --git a/src/web/tracker/models.py b/src/web/tracker/models.py
index 32ed089..b18867c 100644
--- a/src/web/tracker/models.py
+++ b/src/web/tracker/models.py
@@ -31,9 +31,9 @@ class Session(models.Model):
     purchase = models.ForeignKey("Purchase", on_delete=models.CASCADE)
     timestamp_start = models.DateTimeField()
     timestamp_end = models.DateTimeField()
-    duration_manual = models.DurationField()
-    duration_calculated = models.DurationField()
-    note = models.TextField()
+    duration_manual = models.DurationField(blank=True, null=True)
+    duration_calculated = models.DurationField(blank=True, null=True)
+    note = models.TextField(blank=True, null=True)
 
     def __str__(self):
         return self.purchase
diff --git a/src/web/tracker/templates/list_sessions.html b/src/web/tracker/templates/list_sessions.html
index daf4d43..b09023c 100644
--- a/src/web/tracker/templates/list_sessions.html
+++ b/src/web/tracker/templates/list_sessions.html
@@ -9,7 +9,7 @@
     <div class="dark:border-white dark:text-slate-300 text-lg">End</div>
     <div class="dark:border-white dark:text-slate-300 text-lg">Duration</div>
     {% for data in dataset %}
-    <div class="dark:text-slate-400">{{ data.name }}</div>
+    <div class="dark:text-slate-400">{{ data.purchase }}</div>
     <div class="dark:text-slate-400">{{ data.timestamp_start }}</div>
     <div class="dark:text-slate-400">{{ data.timestamp_end }}</div>
     <div class="dark:text-slate-400">{{ data.time_delta }}</div>