diff --git a/lib/blacklight/hierarchy/version.rb b/lib/blacklight/hierarchy/version.rb
index 45c2311..30ffc04 100644
--- a/lib/blacklight/hierarchy/version.rb
+++ b/lib/blacklight/hierarchy/version.rb
@@ -1,5 +1,5 @@
 module Blacklight
   module Hierarchy
-    VERSION = '6.3.0'.freeze
+    VERSION = '6.4.0'.freeze
   end
 end
diff --git a/package.json b/package.json
index 0738eb4..1f99977 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blacklight-hierarchy",
-  "version": "6.3.0",
+  "version": "6.4.0",
   "description": "[![Build Status](https://github.com/sul-dlss/blacklight-hierarchy/workflows/CI/badge.svg)](https://github.com/sul-dlss/blacklight-hierarchy/actions?query=branch%3Amain)",
   "main": "app/assets/javascripts/blacklight/hierarchy/hierarchy.js",
   "files": [