diff --git a/test/asynchronous/test_client_backpressure.py b/test/asynchronous/test_client_backpressure.py
index 94f22ac41c..3d5e7bce3f 100644
--- a/test/asynchronous/test_client_backpressure.py
+++ b/test/asynchronous/test_client_backpressure.py
@@ -356,7 +356,7 @@ async def test_05_overload_errors_with_basebackoffms_override_backoff(self, rand
         # and the baseBackoffMS=50 backoffs are 0.1 + 0.2 = 0.3s.
 
         # Allow for slight timing slack on Windows + <= Python 3.12 due to asyncio timing resolution
-        if sys.platform == "win32" and not _IS_SYNC and sys.version_info <= (3, 12):
+        if sys.platform == "win32" and not _IS_SYNC and sys.version_info < (3, 13):
             exponential_expected = 0.55
             base_backoff_expected = 0.25
         else:
diff --git a/test/test_client_backpressure.py b/test/test_client_backpressure.py
index 11fbbd92e6..67e5115e71 100644
--- a/test/test_client_backpressure.py
+++ b/test/test_client_backpressure.py
@@ -354,7 +354,7 @@ def test_05_overload_errors_with_basebackoffms_override_backoff(self, random_fun
         # and the baseBackoffMS=50 backoffs are 0.1 + 0.2 = 0.3s.
 
         # Allow for slight timing slack on Windows + <= Python 3.12 due to asyncio timing resolution
-        if sys.platform == "win32" and not _IS_SYNC and sys.version_info <= (3, 12):
+        if sys.platform == "win32" and not _IS_SYNC and sys.version_info < (3, 13):
             exponential_expected = 0.55
             base_backoff_expected = 0.25
         else: