diff --git a/changelog.d/+ignore_new_keys_in_tests.infrastructure.md b/changelog.d/+ignore_new_keys_in_tests.infrastructure.md
new file mode 100644
index 00000000..90e3cc85
--- /dev/null
+++ b/changelog.d/+ignore_new_keys_in_tests.infrastructure.md
@@ -0,0 +1 @@
+Fix event notification tests when introducing new keys in API outputs.
\ No newline at end of file
diff --git a/test/helpers.py b/test/helpers.py
index 8ba0fee2..17c5d26e 100644
--- a/test/helpers.py
+++ b/test/helpers.py
@@ -57,3 +57,22 @@ def type_validator_factory(type_):
     if pydantic:
         return pydantic.TypeAdapter(type_).validate_python
     return lambda *args, **kwargs: None
+
+
+def deep_cast_dict(actual, expected):
+    """
+    For composite objects `actual` and `expected`, return a copy of `actual` (with all dicts and lists deeply copied)
+    with all keys of dicts not appearing in `expected` (comparing dicts on any level) removed. Useful for assertions
+    in tests ignoring extra keys.
+    """
+    if isinstance(expected, dict) and isinstance(actual, dict):
+        return {k: deep_cast_dict(actual[k], expected[k]) for k in expected if k in actual}
+
+    elif isinstance(expected, list) and isinstance(actual, list):
+        return [deep_cast_dict(a, e) for a, e in zip(actual, expected)]
+
+    return actual
+
+
+def assert_dict_equal_ignore_extra(actual, expected):
+    assert deep_cast_dict(actual, expected) == expected
diff --git a/test/integration/test_bucket.py b/test/integration/test_bucket.py
index 60a632cd..e9b46d3c 100644
--- a/test/integration/test_bucket.py
+++ b/test/integration/test_bucket.py
@@ -7,6 +7,8 @@
 # License https://www.backblaze.com/using_b2_code.html
 #
 ######################################################################
+from test.helpers import assert_dict_equal_ignore_extra
+
 import pytest
 
 
@@ -33,12 +35,13 @@ def test_bucket_notification_rules(bucket, b2_api):
 
     set_notification_rules = bucket.set_notification_rules([notification_rule])
     assert set_notification_rules == bucket.get_notification_rules()
-    assert set_notification_rules == [
-        {
+    assert_dict_equal_ignore_extra(
+        set_notification_rules,
+        [{
             **notification_rule, "isSuspended": False,
             "suspensionReason": ""
-        }
-    ]
+        }],
+    )
     assert bucket.set_notification_rules([]) == []
 
 
diff --git a/test/integration/test_raw_api.py b/test/integration/test_raw_api.py
index 07d36d8b..12b48f1e 100644
--- a/test/integration/test_raw_api.py
+++ b/test/integration/test_raw_api.py
@@ -16,7 +16,7 @@
 import sys
 import time
 import traceback
-from test.helpers import type_validator_factory
+from test.helpers import assert_dict_equal_ignore_extra, type_validator_factory
 from typing import List
 
 import pytest
@@ -634,7 +634,9 @@ def _subtest_bucket_notification_rules(raw_api, auth_dict, api_url, account_auth
                 }
         }
     ]
-    assert notification_rules_response_list == expected_notification_rule_response_list
+    assert_dict_equal_ignore_extra(
+        notification_rules_response_list, expected_notification_rule_response_list
+    )
 
     assert raw_api.set_bucket_notification_rules(api_url, account_auth_token, bucket_id, []) == []
     assert raw_api.get_bucket_notification_rules(api_url, account_auth_token, bucket_id) == []
diff --git a/test/unit/bucket/test_bucket.py b/test/unit/bucket/test_bucket.py
index eae64467..92639e5c 100644
--- a/test/unit/bucket/test_bucket.py
+++ b/test/unit/bucket/test_bucket.py
@@ -21,7 +21,7 @@
 import unittest.mock as mock
 from contextlib import suppress
 from io import BytesIO
-from test.helpers import NonSeekableIO
+from test.helpers import NonSeekableIO, assert_dict_equal_ignore_extra
 
 import apiver_deps
 import pytest
@@ -3329,22 +3329,24 @@ def test_bucket_notification_rules(bucket, b2api_simulator):
 
     set_notification_rules = bucket.set_notification_rules([notification_rule])
     assert set_notification_rules == bucket.get_notification_rules()
-    assert set_notification_rules == [
-        {
+    assert_dict_equal_ignore_extra(
+        set_notification_rules,
+        [{
             **notification_rule, "isSuspended": False,
             "suspensionReason": ""
-        }
-    ]
+        }],
+    )
 
     b2api_simulator.bucket_id_to_bucket[bucket.id_].simulate_notification_rule_suspension(
         notification_rule["name"], "simulated suspension"
     )
-    assert bucket.get_notification_rules() == [
-        {
+    assert_dict_equal_ignore_extra(
+        bucket.get_notification_rules(),
+        [{
             **notification_rule, "isSuspended": True,
             "suspensionReason": "simulated suspension"
-        }
-    ]
+        }],
+    )
 
     assert bucket.set_notification_rules([]) == []
     assert bucket.get_notification_rules() == []