diff --git a/packages/itinerary-body/package.json b/packages/itinerary-body/package.json
index cc97ab3c8..6b5d93745 100644
--- a/packages/itinerary-body/package.json
+++ b/packages/itinerary-body/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@opentripplanner/itinerary-body",
-  "version": "3.1.1",
+  "version": "4.0.0",
   "description": "A component for displaying an itinerary body of a trip planning result",
   "main": "lib/index.js",
   "module": "esm/index.js",