diff --git a/.github/workflows/tests-python.yml b/.github/workflows/tests-python.yml
index 8fca18b..73bb591 100644
--- a/.github/workflows/tests-python.yml
+++ b/.github/workflows/tests-python.yml
@@ -9,7 +9,7 @@ jobs:
       matrix:
         os: [macos-13, macos-14, ubuntu-latest, windows-latest]
         # can't do pypy - no support for h5py
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
         exclude:
           - os: macos-14
             python-version: "3.7"