diff --git a/package-lock.json b/package-lock.json
index 4361636..3416b76 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "command-line-args",
-  "version": "5.2.1",
+  "version": "6.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "command-line-args",
-      "version": "5.2.1",
+      "version": "6.0.0",
       "license": "MIT",
       "dependencies": {
         "array-back": "^6.2.2",
diff --git a/package.json b/package.json
index a0aae8b..68fdc3c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "command-line-args",
-  "version": "5.2.1",
+  "version": "6.0.0",
   "description": "A mature, feature-complete library to parse command-line options.",
   "repository": "https://github.com/75lb/command-line-args",
   "scripts": {