diff --git a/docs/library/uos.rst b/docs/library/uos.rst
index f043883ad140c9ea93537e154d0fb366f57b52cb..bb95107c04fb9381d070b1b791e115c10ed83adb 100644
--- a/docs/library/uos.rst
+++ b/docs/library/uos.rst
@@ -1,5 +1,5 @@
 :mod:`uos` -- basic "operating system" services
-==============================================
+===============================================
 
 .. module:: uos
    :synopsis: basic "operating system" services
diff --git a/docs/library/utime.rst b/docs/library/utime.rst
index 4dff9a358996a583f5905eeda04ad0d894a0ecd9..e7fc6813dc58b5e0d4ed637b2cc3ca020e60820a 100644
--- a/docs/library/utime.rst
+++ b/docs/library/utime.rst
@@ -1,5 +1,5 @@
 :mod:`utime` -- time related functions
-=====================================
+======================================
 
 .. module:: utime
    :synopsis: time related functions