diff --git a/releasenotes/notes/drop-py39-8a9c99678b3e8eeb.yaml b/releasenotes/notes/drop-py39-8a9c99678b3e8eeb.yaml
new file mode 100644
index 0000000..3418e1d
--- /dev/null
+++ b/releasenotes/notes/drop-py39-8a9c99678b3e8eeb.yaml
@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    watcher client now requires python 3.10 or newer.
+    The last release to support ``3.9`` was ``2025.1``.
+    Please ensure you have a supported python version before upgrading.
diff --git a/setup.cfg b/setup.cfg
index f89a372..82d469e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -6,7 +6,7 @@ description_file =
 author = OpenStack
 author_email = openstack-discuss@lists.openstack.org
 home_page =  https://docs.openstack.org/python-watcherclient/latest/
-python_requires = >=3.9
+python_requires = >=3.10
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology
@@ -15,7 +15,6 @@ classifier =
     Operating System :: POSIX :: Linux
     Programming Language :: Python
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12