Bump aiohttp from 3.6.2 to 3.6.3
diff --git a/python/setup.py b/python/setup.py
index 311b805317af..472dfb57c43a 100644
--- a/python/setup.py
+++ b/python/setup.py
@@ -79,7 +79,7 @@
 
     extras_require={
         ':python_version>="3.5.2"': [
-            'aiohttp==3.6.2',
+            'aiohttp==3.6.3',
             'aiodns==1.1.1',
             'yarl==1.1.0',
         ],
