diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 30768b362..39998f2f4 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -45,11 +45,16 @@ jobs:
           - '3.9'
           - '3.10'
           - '3.11'
-        biopython-version:
-          # list of Biopython versions with support for a new Python version
-          # from https://github.com/biopython/biopython/blob/master/NEWS.rst
+          - '3.12'
+        biopython-version: 
+          # list of Biopython versions with support for a new Python version 
+          # from https://github.com/biopython/biopython/blob/master/NEWS.rst 
           - '1.80' # first to support Python 3.10 and 3.11
-          - ''     # latest
+          - '1.82' # first to support Python 3.12
+          - ''     # latest 
+        exclude: 
+          # some older Biopython versions are incompatible with later Python versions 
+          - { biopython-version: '1.80', python-version: '3.12' }
     defaults:
       run:
         shell: bash -l {0}
diff --git a/setup.py b/setup.py
index 863e67fa0..81aad167d 100644
--- a/setup.py
+++ b/setup.py
@@ -106,6 +106,7 @@
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
     ],
     # Install an "augur" program which calls augur.__main__.main()
     #   https://setuptools.readthedocs.io/en/latest/setuptools.html#automatic-script-creation