diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index 5d39f9b220..67a6cd6dc5 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -373,11 +373,11 @@ function wp_maybe_decline_date( $date, $format = '' ) {
 
 		if ( $decline ) {
 			foreach ( $months as $key => $month ) {
-				$months[ $key ] = '#\b' . preg_quote( $month, '#' ) . ' (\d{1,2})(st|nd|rd|th)?\b#u';
+				$months[ $key ] = '#\b' . preg_quote( $month, '#' ) . ' (\d{1,2})(st|nd|rd|th)?([-–]\d{1,2})?(st|nd|rd|th)?\b#u';
 			}
 
 			foreach ( $months_genitive as $key => $month ) {
-				$months_genitive[ $key ] = '$1 ' . $month;
+				$months_genitive[ $key ] = '$1$3 ' . $month;
 			}
 
 			$date = preg_replace( $months, $months_genitive, $date );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index f5611ad21c..54584524f3 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-47097';
+$wp_version = '5.4-alpha-47098';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.