diff --git a/db/post_migrate/20210513125608_remove_length_constrain_from_topic_excerpt.rb b/db/post_migrate/20210513125608_remove_length_constrain_from_topic_excerpt.rb
new file mode 100644
index 0000000000..3989692b54
--- /dev/null
+++ b/db/post_migrate/20210513125608_remove_length_constrain_from_topic_excerpt.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class RemoveLengthConstrainFromTopicExcerpt < ActiveRecord::Migration[6.1]
+  def up
+    change_column :topics, :excerpt, :string, null: true
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end