diff --git a/wp-content/themes/twentyseventeen/assets/css/blocks.css b/wp-content/themes/twentyseventeen/assets/css/blocks.css
index 0dfb276742..464534c273 100644
--- a/wp-content/themes/twentyseventeen/assets/css/blocks.css
+++ b/wp-content/themes/twentyseventeen/assets/css/blocks.css
@@ -313,7 +313,7 @@ p.has-drop-cap:not(:focus)::first-letter {
 /* Comments */
 
 .wp-block-latest-comments article {
-	margin-bottom: 4em;
+	margin-bottom: 4rem;
 }
 
 .widget-area .wp-block-latest-comments article {
diff --git a/wp-content/themes/twentyseventeen/assets/css/editor-blocks.css b/wp-content/themes/twentyseventeen/assets/css/editor-blocks.css
index 60907122cd..d6976f15d3 100644
--- a/wp-content/themes/twentyseventeen/assets/css/editor-blocks.css
+++ b/wp-content/themes/twentyseventeen/assets/css/editor-blocks.css
@@ -776,7 +776,7 @@ table.wp-block-table td:last-child {
 /* Latest Comments */
 
 .wp-block-latest-comments article {
-	margin-bottom: 4em;
+	margin-bottom: 4rem;
 }
 
 .wp-block-latest-comments .avatar,
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e71676f3d9..fb63eab905 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-beta1-58366';
+$wp_version = '6.6-beta1-58367';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.