diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4c37f8f2..3051fe95 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,10 +8,19 @@ on:
 jobs:
   codejail_ci:
     name: tests
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [ '3.8', '3.11' ]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
+      - name: setup python
+        uses: actions/setup-python@v3
+        with:
+          python-version: ${{ matrix.python-version }}
+
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v1
         with:
diff --git a/codejail/__init__.py b/codejail/__init__.py
index 4bdb01ff..0420a374 100644
--- a/codejail/__init__.py
+++ b/codejail/__init__.py
@@ -1,3 +1,3 @@
 """init"""
 
-__version__ = '3.3.3'
+__version__ = '3.4.0'
diff --git a/tox.ini b/tox.ini
index 4b547477..5196d2e4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py38
+envlist = py{38,311}
 
 [testenv]
 passenv =