diff --git a/doc/timeline/week27.txt b/doc/timeline/week27.txt
index 501f554a02246f1f7122784bd889690f3f4890ec..e19a2822f13e2fd3688bc651e7af978739804c3a 100644
--- a/doc/timeline/week27.txt
+++ b/doc/timeline/week27.txt
@@ -1,7 +1,7 @@
 Week 26 (29.06. - 03.07.)
 =========================
 
-[ ] look at all applications as introduced in the paper (Mo, Di)
+[x] look at all applications as introduced in the paper (Mo, Di)
 
 [ ] implement what is implmentable (Di, Mi)