diff --git a/index.js b/index.js
index eb7de4b..74057de 100644
--- a/index.js
+++ b/index.js
@@ -28,7 +28,7 @@ module.exports = {
       });
 
       const optimizedFiles = await imagemin([glob], {
-        plugins: [gifsicle(), optipng(), pngquant(), svgo(), jpegtran()]
+        plugins: [gifsicle(), optipng(), pngquant(), svgo(), jpegtran({progressive:true})]
       });
 
       optimizedFiles.map(file => {