diff --git a/wp-includes/class-wp-fatal-error-handler.php b/wp-includes/class-wp-fatal-error-handler.php
index 43135e720d..a461281bec 100644
--- a/wp-includes/class-wp-fatal-error-handler.php
+++ b/wp-includes/class-wp-fatal-error-handler.php
@@ -30,6 +30,11 @@ class WP_Fatal_Error_Handler {
 			return;
 		}
 
+		// Do not trigger the fatal error handler while updates are being installed.
+		if ( wp_in_maintenance_mode() ) {
+			return;
+		}
+
 		try {
 			// Bail if no error found.
 			$error = $this->detect_error();
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 31709f6212..ad2bb8b4ce 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-alpha-47766';
+$wp_version = '5.5-alpha-47768';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.