diff --git a/API/app/infrastructure/database/models/course_students.py b/API/app/infrastructure/database/models/course_students.py
index c7030ff..c761c1f 100644
--- a/API/app/infrastructure/database/models/course_students.py
+++ b/API/app/infrastructure/database/models/course_students.py
@@ -1,4 +1,4 @@
-from sqlalchemy import Column, Integer, VARCHAR, String, ForeignKey, Date, Boolean
+from sqlalchemy import Column, Integer, ForeignKey, Date, Boolean
 from sqlalchemy.sql import func
 from sqlalchemy.orm import relationship
 
diff --git a/API/app/infrastructure/database/models/courses.py b/API/app/infrastructure/database/models/courses.py
index 4a6ccd2..4fcb2a3 100644
--- a/API/app/infrastructure/database/models/courses.py
+++ b/API/app/infrastructure/database/models/courses.py
@@ -18,3 +18,4 @@ class Course(Base):
     owner_user = relationship('User', back_populates='owned_courses')
 
     students = relationship('CourseStudent', back_populates='course')
+    notifications = relationship('Notification', back_populates='course')
diff --git a/API/app/infrastructure/database/models/notification_types.py b/API/app/infrastructure/database/models/notification_types.py
new file mode 100644
index 0000000..67c5672
--- /dev/null
+++ b/API/app/infrastructure/database/models/notification_types.py
@@ -0,0 +1,14 @@
+from sqlalchemy import Column, Integer, VARCHAR, String
+from sqlalchemy.orm import relationship
+
+from app.infrastructure.database.models import Base
+
+
+class NotificationType(Base):
+    __tablename__ = 'notification_types'
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    title = Column(VARCHAR(100), nullable=False)
+    description = Column(String, nullable=False)
+
+    notifications = relationship('Notification', back_populates='type')
diff --git a/API/app/infrastructure/database/models/notifications.py b/API/app/infrastructure/database/models/notifications.py
new file mode 100644
index 0000000..1707fed
--- /dev/null
+++ b/API/app/infrastructure/database/models/notifications.py
@@ -0,0 +1,22 @@
+from sqlalchemy import Column, Integer, Boolean, String, DateTime, ForeignKey
+from sqlalchemy.sql import func
+from sqlalchemy.orm import relationship
+
+from app.infrastructure.database.models import Base
+
+
+class Notification(Base):
+    __tablename__ = 'notifications'
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    text = Column(String, nullable=False)
+    datetime_notification = Column(DateTime, nullable=False, default=func.utcnow)
+    is_read = Column(Boolean, nullable=False, default=False)
+
+    user_id = Column(Integer, ForeignKey('users.id'), nullable=False)
+    type_id = Column(Integer, ForeignKey('notification_types.id'), nullable=False)
+    course_id = Column(Integer, ForeignKey('courses.id'))
+
+    user = relationship('User', back_populates='notifications')
+    type = relationship('NotificationType', back_populates='notifications')
+    course = relationship('Course', back_populates='notifications')
diff --git a/API/app/infrastructure/database/models/users.py b/API/app/infrastructure/database/models/users.py
index 0498078..4310f90 100644
--- a/API/app/infrastructure/database/models/users.py
+++ b/API/app/infrastructure/database/models/users.py
@@ -35,6 +35,7 @@ class User(Base):
     appeals = relationship('Appeal', back_populates='user')
     owned_courses = relationship('Course', back_populates='owned_courses')
     enrolled_courses = relationship('CourseStudent', back_populates='user')
+    notifications = relationship('Notification', back_populates='user')
 
     def check_password(self, password):
         return check_password_hash(self.password, password)