diff --git a/tag_database b/tag_database
index f8be5804e..4c4918959 100644
--- a/tag_database
+++ b/tag_database
@@ -21,4 +21,5 @@ palindrome:string
 is_upper_case:string
 is_lower_case:string
 count_by:list
-difference_by:list
\ No newline at end of file
+difference_by:list
+insertion_sort:list