diff --git a/docs/docs/integrations/api.md b/docs/docs/integrations/api.md
index 9aec392a4..b5b80f3ea 100644
--- a/docs/docs/integrations/api.md
+++ b/docs/docs/integrations/api.md
@@ -213,7 +213,7 @@ Sets retain to false for the event id (event may be deleted quickly after removi
 ### `POST /api/events/<id>/sub_label`
 
 Set a sub label for an event. For example to update `person` -> `person's name` if they were recognized with facial recognition.
-Sub labels must be 20 characters or shorter.
+Sub labels must be 100 characters or shorter.
 
 ```json
 {
diff --git a/frigate/http.py b/frigate/http.py
index 66aaff368..94aa5c129 100644
--- a/frigate/http.py
+++ b/frigate/http.py
@@ -375,13 +375,13 @@ def set_sub_label(id):
     else:
         new_sub_label = None
 
-    if new_sub_label and len(new_sub_label) > 20:
+    if new_sub_label and len(new_sub_label) > 100:
         return make_response(
             jsonify(
                 {
                     "success": False,
                     "message": new_sub_label
-                    + " exceeds the 20 character limit for sub_label",
+                    + " exceeds the 100 character limit for sub_label",
                 }
             ),
             400,
diff --git a/frigate/models.py b/frigate/models.py
index 3770121cc..0d5f1ab4a 100644
--- a/frigate/models.py
+++ b/frigate/models.py
@@ -14,7 +14,7 @@ from playhouse.sqlite_ext import JSONField
 class Event(Model):  # type: ignore[misc]
     id = CharField(null=False, primary_key=True, max_length=30)
     label = CharField(index=True, max_length=20)
-    sub_label = CharField(max_length=20, null=True)
+    sub_label = CharField(max_length=100, null=True)
     camera = CharField(index=True, max_length=20)
     start_time = DateTimeField()
     end_time = DateTimeField()
diff --git a/migrations/016_sublabel_increase.py b/migrations/016_sublabel_increase.py
new file mode 100644
index 000000000..b46b9fc79
--- /dev/null
+++ b/migrations/016_sublabel_increase.py
@@ -0,0 +1,12 @@
+import peewee as pw
+from playhouse.migrate import *
+from playhouse.sqlite_ext import *
+from frigate.models import Event
+
+
+def migrate(migrator, database, fake=False, **kwargs):
+    migrator.change_columns(Event, sub_label=pw.CharField(max_length=100, null=True))
+
+
+def rollback(migrator, database, fake=False, **kwargs):
+    migrator.change_columns(Event, sub_label=pw.CharField(max_length=20, null=True))