diff --git a/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md b/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md
index 9e85482..f837fae 100644
--- a/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md
+++ b/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md
@@ -7,10 +7,10 @@
 - [x] Task: Conductor - User Manual Verification 'Reproduction' (Protocol in workflow.md)
 
 ## Phase 2: Fix Implementation
-- [ ] Task: Implement mapping logic in `icalendar.ts`
-    - [ ] Create a mapping object for verbose keys to iCal keys.
-    - [ ] Update `expandRecurrences` to use this mapping.
-    - [ ] Run the test to confirm it passes.
+- [x] Task: Implement mapping logic in `icalendar.ts` b8bc6cc
+    - [x] Create a mapping object for verbose keys to iCal keys.
+    - [x] Update `expandRecurrences` to use this mapping.
+    - [x] Run the test to confirm it passes.
 - [ ] Task: Conductor - User Manual Verification 'Fix Implementation' (Protocol in workflow.md)
 
 ## Phase 3: Verification & Cleanup