diff --git a/lib/mobilizon/events/tag.ex b/lib/mobilizon/events/tag.ex
index 3a2488e1e..b4fc428eb 100644
--- a/lib/mobilizon/events/tag.ex
+++ b/lib/mobilizon/events/tag.ex
@@ -36,7 +36,7 @@ defmodule Mobilizon.Events.Tag do
     |> TitleSlug.maybe_generate_slug()
     |> validate_required(@required_attrs)
     |> TitleSlug.unique_constraint()
-    |> validate_length(:title, min: 2, max: 20)
-    |> validate_length(:slug, min: 2, max: 20)
+    |> validate_length(:title, min: 2, max: 40)
+    |> validate_length(:slug, min: 2, max: 40)
   end
 end