diff --git a/changelog/10012.deprecation.rst b/changelog/10012.deprecation.rst
new file mode 100644
index 000000000..bb821a0de
--- /dev/null
+++ b/changelog/10012.deprecation.rst
@@ -0,0 +1 @@
+ upgrade PytestUnhandledCoroutineWarning to PytestDeprecationWarning