diff --git a/package-lock.json b/package-lock.json
index 912242b..b21c9cb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "gulp-image",
-  "version": "4.1.0",
+  "version": "4.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 9b2ee26..a440230 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gulp-image",
-  "version": "4.1.0",
+  "version": "4.2.0",
   "description": "Optimize PNG, JPG, GIF, SVG images with gulp task.",
   "repository": "1000ch/gulp-image",
   "author": {