diff --git a/aiozipkin/transport.py b/aiozipkin/transport.py
index 671b43f..b8141f7 100644
--- a/aiozipkin/transport.py
+++ b/aiozipkin/transport.py
@@ -14,7 +14,7 @@
 
 
 DEFAULT_TIMEOUT = aiohttp.ClientTimeout(total=5 * 60)
-BATCHES_MAX_COUNT = 10 ** 4
+BATCHES_MAX_COUNT = 10**4
 
 DataList = List[Dict[str, Any]]
 SndBatches = Deque[Tuple[int, DataList]]
diff --git a/setup.py b/setup.py
index 4aebb3a..636b3ab 100644
--- a/setup.py
+++ b/setup.py
@@ -5,10 +5,6 @@
 from setuptools import find_packages, setup  # type: ignore
 
 
-if sys.version_info < (3, 6, 0):
-    raise RuntimeError("aiozipkin does not support Python earlier than 3.6.0")
-
-
 def read(f: str) -> str:
     return open(os.path.join(os.path.dirname(__file__), f)).read().strip()