diff --git a/gulpfile.js b/gulpfile.js
index 2d180ba9..5d3cf21b 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -74,11 +74,11 @@ gulp.task('jslint', function() {
 gulp.task('images', function () {
   return gulp.src('images/*')
     .pipe(imagemin({
-      optimizationLevel: 7,
+      // optimizationLevel: 7,
       progressive: true,
       interlaced: true,
       svgoPlugins: [{removeViewBox: true}],
-      use: [imageminMozjpeg()]
+      // use: [imageminMozjpeg()]
     }))
     .pipe(gulp.dest('images'));
 });
diff --git a/images/foo-bar-identity-th.jpg b/images/foo-bar-identity-th.jpg
index e69de29b..49906ac6 100644
Binary files a/images/foo-bar-identity-th.jpg and b/images/foo-bar-identity-th.jpg differ
diff --git a/images/unsplash-gallery-image-3.jpg b/images/unsplash-gallery-image-3.jpg
index 5faa89e9..e69de29b 100644
Binary files a/images/unsplash-gallery-image-3.jpg and b/images/unsplash-gallery-image-3.jpg differ