diff --git a/package-lock.json b/package-lock.json
index fb18430..575e667 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "md-toc-cli",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "md-toc-cli",
-      "version": "3.1.0",
+      "version": "3.1.1",
       "license": "Apache-2.0",
       "dependencies": {
         "yargs": "^17.7.2"
diff --git a/package.json b/package.json
index eaaf0e8..91d44d1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "md-toc-cli",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "description": "Automatically insert or update a clickable table of contents (TOC) into your Markdown documents based on its headings using CLI or JavaScript module.",
   "type": "module",
   "bin": "./src/bin/index.js",