diff --git a/docs/IMPLEMENTATION_PLAN.md b/docs/IMPLEMENTATION_PLAN.md
index 5510771..b6479c4 100644
--- a/docs/IMPLEMENTATION_PLAN.md
+++ b/docs/IMPLEMENTATION_PLAN.md
@@ -947,7 +947,7 @@ Web:        Store/GameState/, Components/Game/, Hubs/GameHub
 
 | ☐ | Phase | Bereich | Beschreibung | Dateien |
 |---|-------|---------|--------------|---------|
-| ☐ | **H0** | **Trigger-Engine** | **ITriggerService + Repository** | **5** |
+| ✓ | H0 | Trigger-Engine | ITriggerService + Repository | 5 |
 | ☐ | H1 | Foundation | GameState Fluxor + Enums | 6 |
 | ☐ | H2 | Components | Pin Input Components (neu schreiben) | 5 |
 | ☐ | H3 | Framework | Game Definition Framework | 5 |