diff --git a/.deadlines.yml b/.deadlines.yml
index 97773b8..7e950a3 100644
--- a/.deadlines.yml
+++ b/.deadlines.yml
@@ -1,3 +1,18 @@
+- group:    Interfaces
+  start:    24-02-2022 18:00
+  deadline: 06-03-2022 23:59
+  tasks:
+    - task: otp
+      score: 100
+    - task: lrucache
+      score: 100
+    - task: externalsort
+      score: 100
+    - task: retryupdate
+      score: 100
+    - task: ciletters
+      score: 100
+
 - group:    Basics
   start:    17-02-2022 18:00
   deadline: 27-02-2022 23:59