diff --git a/package.json b/package.json
index 5767c6a..91c6f74 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chris-si/chord-transposer-ng",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "description": "Transposes musical chords in arbitrary text.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",