diff --git a/wp-content/themes/twentytwenty/style-rtl.css b/wp-content/themes/twentytwenty/style-rtl.css
index a1214bafcb..ae9bcb3412 100644
--- a/wp-content/themes/twentytwenty/style-rtl.css
+++ b/wp-content/themes/twentytwenty/style-rtl.css
@@ -5598,7 +5598,7 @@ a.to-the-top > * {
 	/* Site Header --------------------------- */
 
 	#site-header {
-		z-index: 1;
+		z-index: 2;
 	}
 
 	.header-inner {
diff --git a/wp-content/themes/twentytwenty/style.css b/wp-content/themes/twentytwenty/style.css
index 0ebfa46067..7500f740ac 100644
--- a/wp-content/themes/twentytwenty/style.css
+++ b/wp-content/themes/twentytwenty/style.css
@@ -5660,7 +5660,7 @@ a.to-the-top > * {
 	/* Site Header --------------------------- */
 
 	#site-header {
-		z-index: 1;
+		z-index: 2;
 	}
 
 	.header-inner {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 15ed399bf2..466e6cf811 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-alpha-47608';
+$wp_version = '5.5-alpha-47609';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.