diff --git a/package-lock.json b/package-lock.json
index ddcac6e..86dbb5f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "path-to-regexp",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "path-to-regexp",
-      "version": "1.8.0",
+      "version": "1.9.0",
       "license": "MIT",
       "dependencies": {
         "isarray": "0.0.1"
diff --git a/package.json b/package.json
index 4b9f331..c06f284 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "path-to-regexp",
   "description": "Express style path to RegExp utility",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "main": "index.js",
   "typings": "index.d.ts",
   "files": [