formally support python 3.11
diff --git a/.travis.yml b/.travis.yml
index 423c3a2..74bd1ad 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,7 +25,7 @@
env:
allow_failures:
- - python: '3.11-dev'
+ - python:
fast_finish: true
cache:
diff --git a/setup.py b/setup.py
index b28e04f..6ceea95 100644
--- a/setup.py
+++ b/setup.py
@@ -66,6 +66,7 @@
'Programming Language :: Python :: 3.8',
'Programming Language :: Python :: 3.9',
'Programming Language :: Python :: 3.10',
+ 'Programming Language :: Python :: 3.11',
'Programming Language :: Python :: Implementation :: CPython',
'Programming Language :: Python :: Implementation :: PyPy',
'Topic :: Scientific/Engineering',