diff --git a/Update/README.md b/Update/README.md
index 5ca64ab..94c54b1 100644
--- a/Update/README.md
+++ b/Update/README.md
@@ -15,7 +15,7 @@ Chapters
 - [x] onik_010.txt
 - [x] onik_011.txt
 - [x] onik_012.txt
-- [ ] onik_013.txt
+- [x] onik_013.txt
 - [ ] onik_014.txt
 - [x] onik_014_02.txt
 - [ ] Test onik_015.txt -> onik_015_03.txt