diff --git a/.travis.yml b/.travis.yml
index ba6b16a9..398b2e58 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,8 @@
 language: python
-
+dist: bionic
 python:
   - "3.9"
+  - "3.10"
 
 env:
   - TEST_RELEASE=false HYPER_FAST_PARSE=false
diff --git a/hyper/http11/connection.py b/hyper/http11/connection.py
index 43e5e805..136ed62b 100644
--- a/hyper/http11/connection.py
+++ b/hyper/http11/connection.py
@@ -11,7 +11,6 @@
 import base64
 
 from collections.abc import Iterable, Mapping
-import collections
 from hyperframe.frame import SettingsFrame
 
 from .response import HTTP11Response
@@ -294,7 +293,7 @@ def _send_body(self, body, body_type):
                 return
 
             # Iterables that set a specific content length.
-            elif isinstance(body, collections.Iterable):
+            elif isinstance(body, Iterable):
                 for item in body:
                     try:
                         self._sock.send(item)