diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index 06ba323ca30c6c..ff51a4a32cc572 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -1173,7 +1173,7 @@ are always available.  They are listed here in alphabetical order.
 
          * The file is now non-inheritable.
 
-   .. deprecated-removed:: 3.4 4.0
+   .. deprecated-removed:: 3.4 3.9
 
       The ``'U'`` mode.