diff --git a/package-lock.json b/package-lock.json
index 4f8734d1..81b763ed 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "css-what",
-    "version": "5.1.0",
+    "version": "6.0.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "css-what",
-            "version": "5.1.0",
+            "version": "6.0.0",
             "license": "BSD-2-Clause",
             "devDependencies": {
                 "@types/jest": "^27.0.3",
diff --git a/package.json b/package.json
index 46c252ce..14c01469 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "author": "Felix Böhm <me@feedic.com> (http://feedic.com)",
     "name": "css-what",
     "description": "a CSS selector parser",
-    "version": "5.1.0",
+    "version": "6.0.0",
     "funding": {
         "url": "https://github.com/sponsors/fb55"
     },