diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index a46ddf4..5bbe3bb 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -9,6 +9,8 @@ on:
   release:
     types:
       - published
+  schedule:
+    - cron: "14 14 20 * *"
 
 # Cancel any previous run of the test job.
 concurrency:
@@ -24,7 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu, ]  # macos, windows]  # Only Linux currently.
-        python-version: ["3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12"]
 
     env:
       # Used for coveralls flag
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index b78f0eb..bb3b869 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -13,6 +13,9 @@ Maintenance
 - Changed from ``setup.py`` to ``pyproject.toml``.
 - Ready for numpy v2.
 - Updated all CI.
+- Change from ``master`` to ``main``.
+- Add Makefile.
+- Add monthly tests.
 
 
 v0.2.0 : First packaged release