diff --git a/src/sdk/src/models/lesson.py b/src/sdk/src/models/lesson.py
index 82c7847..ba2358c 100644
--- a/src/sdk/src/models/lesson.py
+++ b/src/sdk/src/models/lesson.py
@@ -3,7 +3,7 @@ from pydantic import BaseModel
 
 class LessonDate(BaseModel):
     Timestamp: int
-    Date: str
+    Date: date
     DateDisplay: str
     Time: str
 
@@ -73,7 +73,6 @@ class Lesson(BaseModel):
     Subject: Subject
     TeacherPrimary: Teacher
     TeacherSecondary: Teacher | None
-    TeacherSecondary2: Teacher | None
     Change: Change | None
     Clazz: Clazz
     Distribution: Distribution | None