diff --git a/lifeguard_mongodb/__init__.py b/lifeguard_mongodb/__init__.py
index 6da3ba4..12018d7 100644
--- a/lifeguard_mongodb/__init__.py
+++ b/lifeguard_mongodb/__init__.py
@@ -3,13 +3,17 @@
 """
 from lifeguard.repositories import declare_implementation
 
-from lifeguard_mongodb.repositories import (MongoDBNotificationRepository,
-                                            MongoDBValidationRepository)
+from lifeguard_mongodb.repositories import (
+    MongoDBHistoryRepository,
+    MongoDBNotificationRepository,
+    MongoDBValidationRepository,
+)
 
 
 class LifeguardMongoDBPlugin:
     def __init__(self, lifeguard_context):
         self.lifeguard_context = lifeguard_context
+        declare_implementation("history", MongoDBHistoryRepository)
         declare_implementation("notification", MongoDBNotificationRepository)
         declare_implementation("validation", MongoDBValidationRepository)
 
diff --git a/lifeguard_mongodb/repositories.py b/lifeguard_mongodb/repositories.py
index cca429e..2eca4f3 100644
--- a/lifeguard_mongodb/repositories.py
+++ b/lifeguard_mongodb/repositories.py
@@ -1,7 +1,7 @@
 """
 Implementation of repositories using MongoDB
 """
-from lifeguard.notifications import NotificationStatus
+from lifeguard.notifications import NotificationStatus, NotificationOccurrence
 from lifeguard.validations import ValidationResponse
 from pymongo import MongoClient
 
@@ -24,6 +24,38 @@ def save_or_update(collection, query, data):
         collection.insert_one(data)
 
 
+class MongoDBHistoryRepository:
+    def __init__(self):
+        self.collection = DATABASE.history
+
+    def append_notification(self, notification_occurrence):
+        self.collection.insert_one(
+            {
+                "validation_name": notification_occurrence.validation_name,
+                "details": notification_occurrence.details,
+                "status": notification_occurrence.status,
+                "notification_type": notification_occurrence.notification_type,
+                "created_at": notification_occurrence.created_at,
+            }
+        )
+
+    def fetch_notifications(self, start_interval, end_interval, filters):
+        filters.update({"created_at": {"$gte": start_interval, "$lte": end_interval}})
+        return [
+            self.__convert_to_occurrence(entry)
+            for entry in self.collection.find(filters)
+        ]
+
+    def __convert_to_occurrence(self, entry):
+        return NotificationOccurrence(
+            validation_name=entry["validation_name"],
+            details=entry["details"],
+            status=entry["status"],
+            notification_type=entry["notification_type"],
+            created_at=entry["created_at"],
+        )
+
+
 class MongoDBValidationRepository:
     def __init__(self):
         self.collection = DATABASE.validations
diff --git a/requirements.txt b/requirements.txt
index 090b923..3c861e0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-lifeguard==0.0.14
+lifeguard==0.0.39
 pymongo==3.11.0
diff --git a/setup.py b/setup.py
index 498ecae..19d73ec 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 
 setup(
     name="lifeguard-mongodb",
-    version="0.0.8",
+    version="0.0.10",
     url="https://github.com/LifeguardSystem/lifeguard-mongodb",
     author="Diego Rubin",
     author_email="contact@diegorubin.dev",
diff --git a/tests/test_repositories.py b/tests/test_repositories.py
index 55c2214..03d7072 100644
--- a/tests/test_repositories.py
+++ b/tests/test_repositories.py
@@ -1,15 +1,79 @@
 from datetime import datetime
+import json
+
 import unittest
 from unittest.mock import patch, MagicMock
 
 from lifeguard.notifications import NotificationStatus
 from lifeguard.validations import ValidationResponse
 from lifeguard_mongodb.repositories import (
+    MongoDBHistoryRepository,
     MongoDBValidationRepository,
     MongoDBNotificationRepository,
 )
 
 
+class TestMongoDBHistoryRepository(unittest.TestCase):
+    @patch("lifeguard_mongodb.repositories.DATABASE")
+    def setUp(self, mock_database):
+        self.collection = MagicMock(name="history")
+        mock_database.history = self.collection
+        self.repository = MongoDBHistoryRepository()
+
+    def test_append_notification(self):
+        notification_occurrence = MagicMock(name="notification_occurrence")
+        notification_occurrence.validation_name = "validation_name"
+        notification_occurrence.details = "details"
+        notification_occurrence.status = "status"
+        notification_occurrence.notification_type = "notification_type"
+        notification_occurrence.created_at = "created_at"
+
+        self.repository.append_notification(notification_occurrence)
+
+        self.collection.insert_one.assert_called_with(
+            {
+                "validation_name": "validation_name",
+                "details": "details",
+                "status": "status",
+                "notification_type": "notification_type",
+                "created_at": "created_at",
+            }
+        )
+
+    def test_fetch_notifications(self):
+        start_interval = MagicMock(name="start_interval")
+        end_interval = MagicMock(name="end_interval")
+        filters = {}
+
+        self.collection.find.return_value = [
+            {
+                "validation_name": "validation_name",
+                "details": "details",
+                "status": "status",
+                "notification_type": "notification_type",
+                "created_at": "created_at",
+            }
+        ]
+
+        result = self.repository.fetch_notifications(
+            start_interval, end_interval, filters
+        )
+
+        self.collection.find.assert_called_with(
+            {"created_at": {"$gte": start_interval, "$lte": end_interval}}
+        )
+        self.assertEqual(
+            result[0].__dict__,
+            {
+                "_created_at": "created_at",
+                "_details": "details",
+                "_notification_type": "notification_type",
+                "_status": "status",
+                "_validation_name": "validation_name",
+            },
+        )
+
+
 class TestMongoDBValidationRepository(unittest.TestCase):
     @patch("lifeguard_mongodb.repositories.DATABASE")
     def setUp(self, mock_database):