diff --git a/.github/workflows/CI.yaml b/.github/workflows/CI.yaml
index cb12788..7a88394 100644
--- a/.github/workflows/CI.yaml
+++ b/.github/workflows/CI.yaml
@@ -29,9 +29,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
         rdkit-version: ["latest", ]
-        os: [ubuntu-latest, macos-12]
+        os: [ubuntu-latest, macos-latest]
         include:
           - rdkit-version: "2021"
             python-version: "3.9"