diff --git a/.kiro/specs/text-to-audiobook/tasks.md b/.kiro/specs/text-to-audiobook/tasks.md
index 879620b..b38fd2f 100644
--- a/.kiro/specs/text-to-audiobook/tasks.md
+++ b/.kiro/specs/text-to-audiobook/tasks.md
@@ -23,7 +23,7 @@
   - Test error response format
   - _Requirements: 9.1_
 
-- [ ] 3. Implement role detection service
+- [x] 3. Implement role detection service
   - Create RoleDetector class with pattern matching logic
   - Implement colon pattern extraction ("RoleName:")
   - Implement bracket pattern extraction ("[RoleName]")
@@ -54,7 +54,7 @@
   - Test mixed patterns (both colon and bracket)
   - _Requirements: 2.4_
 
-- [ ] 4. Implement TTS service with Kokoro integration
+- [x] 4. Implement TTS service with Kokoro integration
   - Create TTSService class
   - Implement KPipeline initialization and caching per language
   - Implement text segmentation logic to identify role markers and split text