diff --git a/wp-content/themes/twentysixteen/css/blocks.css b/wp-content/themes/twentysixteen/css/blocks.css
index df2febe24c..bf0d9554d9 100644
--- a/wp-content/themes/twentysixteen/css/blocks.css
+++ b/wp-content/themes/twentysixteen/css/blocks.css
@@ -252,6 +252,11 @@ p.has-drop-cap:not(:focus)::first-letter {
 	text-transform: uppercase;
 }
 
+.wp-block-buttons[style*="text-transform"] .wp-block-button__link,
+.wp-block-button[style*="text-transform"] .wp-block-button__link {
+	text-transform: inherit;
+}
+
 .wp-block-button__link {
 	background: #1a1a1a;
 	color: #fff;
diff --git a/wp-content/themes/twentysixteen/css/editor-blocks.css b/wp-content/themes/twentysixteen/css/editor-blocks.css
index 369fbe6c34..5e4c15b0fe 100644
--- a/wp-content/themes/twentysixteen/css/editor-blocks.css
+++ b/wp-content/themes/twentysixteen/css/editor-blocks.css
@@ -560,6 +560,11 @@ Description: Used to style blocks in the editor.
 	text-transform: uppercase;
 }
 
+.wp-block-buttons[style*="text-transform"] .wp-block-button__link,
+.wp-block-button[style*="text-transform"] .wp-block-button__link {
+	text-transform: inherit;
+}
+
 .wp-block-button__link {
 	background: #1a1a1a;
 	color: #fff;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 9177002024..dc41875284 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.3-alpha-55998';
+$wp_version = '6.3-alpha-55999';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.