diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst
index e7d87cf3c72..f88866d7b8b 100644
--- a/Doc/whatsnew/3.4.rst
+++ b/Doc/whatsnew/3.4.rst
@@ -1423,7 +1423,7 @@ Other Build and C API Changes
 
 
 Other Improvements
-==================
+------------------
 
 * Tab-completion is now enabled by default in the interactive interpreter.
   (Contributed by Antoine Pitrou and Éric Araujo in :issue:`5845`.)
@@ -1466,7 +1466,7 @@ Other Improvements
 
 
 Significant Optimizations
-=========================
+-------------------------
 
 * The UTF-32 decoder is now 3x to 4x faster.  (Contributed by Serhiy Storchaka
   in :issue:`14625`.)