diff --git a/setup.cfg b/setup.cfg
index 4ffc77d..84360a6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -9,7 +9,7 @@ exclude=
   *.eggs-info,
   build,
 # E501,E231,W503: not respected by black
-ignore = E501,W503,E203,E231,D100,D101,D102,D103,D104,D105,D107,D205,D400,D402,B902,I100,I202
+ignore = E501,W503,E203,E231,D100,D101,D102,D103,D104,D105,D107,D205,D400,D402,B902,I100,I202,A005
 enable-extensions=G
 import-order-style=google
 
diff --git a/setup.py b/setup.py
index 2280bf3..058ba42 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
     python_requires=">=3.8",
     install_requires=[
         "aiohttp",
-        "ddsketch",
+        "ddsketch[serialization]",
         "msgpack",
         "requests",
         "typing_extensions",