diff --git a/block.py b/block.py
index 74de71e..fc07805 100644
--- a/block.py
+++ b/block.py
@@ -16,6 +16,7 @@ def __main__(
         email_cnt: int,
         rejected_app_count: float,
         app_dt_day_cnt: int,
+        hd_score_iso_m2: float
     ) -> dict:
     # Create a dictionary instead of using pandas DataFrame
     data = {
@@ -26,6 +27,7 @@ def __main__(
         "email_cnt": email_cnt,
         "rejected_app_count": rejected_app_count,
         "app_dt_day_cnt": app_dt_day_cnt,
+        "hd_score_iso_m2": hd_score_iso_m2,
     }
 
     final = processing(data)
diff --git a/request_schema.json b/request_schema.json
index 273cd13..fbf2d89 100644
--- a/request_schema.json
+++ b/request_schema.json
@@ -29,6 +29,10 @@
     "app_dt_day_cnt": {
       "type": ["number", "null"],
       "description": "Number of application days counted."
+    },
+    "hd_score_iso_m2": {
+      "type": ["number", "null"],
+      "description": "HD fraud Score M2"
     }
   },
   "required": []
diff --git a/response_schema.json b/response_schema.json
index b4dcb57..bdfa09f 100644
--- a/response_schema.json
+++ b/response_schema.json
@@ -21,6 +21,10 @@
     "hd_score_s3": {
       "type": ["number", "null"],
       "description": "HD Fraud Score S3"
+    },
+    "hd_score_iso_m2": {
+      "type": ["number", "null"],
+      "description": "HD Fraud Score M2"
     }
   }
 }
diff --git a/rules_processing.py b/rules_processing.py
index 1645256..bbe7005 100644
--- a/rules_processing.py
+++ b/rules_processing.py
@@ -49,6 +49,7 @@ def processing(data: dict) -> dict:
         "hd_score_s1": hd_score_s1,
         "hd_score_s2": hd_score_s2,
         "hd_score_s3": hd_score_s3,
+        "hd_score_iso_m2": data["hd_score_iso_m2"],
     }
 
 
diff --git a/test_block.py b/test_block.py
index 763dbc4..06a235b 100644
--- a/test_block.py
+++ b/test_block.py
@@ -1,7 +1,7 @@
 import unittest
 from block import __main__
 
-data = {'hd_score_m1': 1173.0, 'hd_score_g1': 1203.0, 'cluster_size_users_v2': 3.0, 'target_connected_30_sum': 0.0, 'email_cnt': 1.0, 'rejected_app_count': 2.0, 'app_dt_day_cnt': 3.0}
+data = {'hd_score_m1': 1093.0, 'hd_score_g1': 0.0, 'cluster_size_users_v2': 1.0, 'target_connected_30_sum': 0.0, 'email_cnt': 1.0, 'rejected_app_count': 0.0, 'app_dt_day_cnt': 1.0, 'hd_score_iso_m2': 1001.0}
 
 class TestBlock(unittest.TestCase):
     def test_main_success(self):