diff --git a/package.json b/package.json
index 2ce59f5..aff7216 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mathml-tag-names",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "List of known MathML tag-names",
   "license": "MIT",
   "keywords": [