diff --git a/package.json b/package.json
index 665f18a..0a82b68 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "nlcst-test",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "description": "nlcst utility to check assert an nlcst node",
   "license": "MIT",
   "keywords": [