diff --git a/packages/core-utils/package.json b/packages/core-utils/package.json
index 443839539..a32ab0944 100644
--- a/packages/core-utils/package.json
+++ b/packages/core-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@opentripplanner/core-utils",
-  "version": "11.5.0",
+  "version": "12.0.0",
   "description": "Core functionality that is shared among numerous UI components",
   "engines": {
     "node": ">=13"