diff --git a/wp-content/themes/twentynineteen/sass/modules/_accessibility.scss b/wp-content/themes/twentynineteen/sass/modules/_accessibility.scss
index 469887ccac..e911942f13 100644
--- a/wp-content/themes/twentynineteen/sass/modules/_accessibility.scss
+++ b/wp-content/themes/twentynineteen/sass/modules/_accessibility.scss
@@ -19,7 +19,7 @@
 		clip-path: none;
 		color: $color__text-screen;
 		display: block;
-		@include font-size(0.875);
+		font-size: 0.875rem;
 		font-weight: bold;
 		height: auto;
 		left: 5px;
diff --git a/wp-content/themes/twentynineteen/style-rtl.css b/wp-content/themes/twentynineteen/style-rtl.css
index 46088221be..3b166ae1bc 100644
--- a/wp-content/themes/twentynineteen/style-rtl.css
+++ b/wp-content/themes/twentynineteen/style-rtl.css
@@ -3619,7 +3619,6 @@ body.page .main-navigation {
   clip-path: none;
   color: #21759b;
   display: block;
-  font-size: 14px;
   font-size: 0.875rem;
   font-weight: bold;
   height: auto;
diff --git a/wp-content/themes/twentynineteen/style.css b/wp-content/themes/twentynineteen/style.css
index 87427310d0..c32e62e68c 100644
--- a/wp-content/themes/twentynineteen/style.css
+++ b/wp-content/themes/twentynineteen/style.css
@@ -3619,7 +3619,6 @@ body.page .main-navigation {
   clip-path: none;
   color: #21759b;
   display: block;
-  font-size: 14px;
   font-size: 0.875rem;
   font-weight: bold;
   height: auto;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 086e351cb7..899469943e 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-47139';
+$wp_version = '5.4-alpha-47140';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.