diff --git a/.travis.yml b/.travis.yml
index 8678af0..25e5805 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,29 +2,21 @@ language: python
 
 matrix:
   include:
-    - python: 3.9-dev
+    - python: 3.11-dev
       env: TOXENV=black
-    - python: 3.9-dev
+    - python: 3.11-dev
       env: TOXENV=coveralls
-    - python: 3.5-dev
-      env: TOXENV=full
-    - python: 3.5-dev
-      env: TOXENV=min
-    - python: 3.6-dev
-      env: TOXENV=full
-    - python: 3.6-dev
-      env: TOXENV=min
-    - python: 3.7-dev
+    - python: 3.9-dev
       env: TOXENV=full
-    - python: 3.7-dev
+    - python: 3.9-dev
       env: TOXENV=min
-    - python: 3.8-dev
+    - python: 3.10-dev
       env: TOXENV=full
-    - python: 3.8-dev
+    - python: 3.10-dev
       env: TOXENV=min
-    - python: 3.9-dev
+    - python: 3.11-dev
       env: TOXENV=full
-    - python: 3.9-dev
+    - python: 3.11-dev
       env: TOXENV=min
 
 before_install:
diff --git a/tox.ini b/tox.ini
index bf8c1b1..8595fae 100644
--- a/tox.ini
+++ b/tox.ini
@@ -27,7 +27,7 @@ commands= python setup.py testmin
 [testenv:coveralls]
 passenv = TRAVIS TRAVIS_JOB_ID TRAVIS_BRANCH COVERALLS_REPO_TOKEN
 usedevelop=True
-basepython=python3.9
+basepython=python3.11
 changedir=.
 deps =
     {[testenv]deps}
@@ -41,7 +41,7 @@ commands=
 [testenv:black]
 passenv = TRAVIS TRAVIS_JOB_ID TRAVIS_BRANCH COVERALLS_REPO_TOKEN
 usedevelop=True
-basepython=python3.9
+basepython=python3.11
 changedir=.
 deps =
     {[testenv]deps}