diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index aa1316b1f24..f8803af9520 100644
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -3465,7 +3465,7 @@ written in Python, such as a mail server's external command delivery program.
    :c:data:`POSIX_SPAWN_SETSCHEDPARAM` and :c:data:`POSIX_SPAWN_SETSCHEDULER`
    flags.
 
-   .. versionadded:: 3.7
+   .. versionadded:: 3.8
 
    .. availability:: Unix.