diff --git a/gulpfile.js b/gulpfile.js
index 0e14b0a8..5b6a1937 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -7,15 +7,15 @@
 * Packages used
 *
 **/
-var gulp         = require('gulp');
-var sass         = require('gulp-sass');
-var prefix       = require('gulp-autoprefixer');
-var plumber      = require('gulp-plumber');
-var uglify       = require('gulp-uglifyjs');
-var jshint       = require('gulp-jshint');
-var rename       = require('gulp-rename');
-var imagemin     = require('gulp-imagemin');
-var pngquant     = require('imagemin-pngquant');
+var gulp            = require('gulp');
+var sass            = require('gulp-sass');
+var prefix          = require('gulp-autoprefixer');
+var plumber         = require('gulp-plumber');
+var uglify          = require('gulp-uglifyjs');
+var jshint          = require('gulp-jshint');
+var rename          = require('gulp-rename');
+var imagemin        = require('gulp-imagemin');
+var imageminMozjpeg = require('imagemin-mozjpeg');
 
 /**
 *
@@ -74,9 +74,11 @@ gulp.task('jslint', function() {
 gulp.task('images', function () {
   return gulp.src('images/*')
     .pipe(imagemin({
+      optimizationLevel: 7,
       progressive: true,
-      svgoPlugins: [{removeViewBox: false}],
-      use: [pngquant()]
+      interlaced: true,
+      svgoPlugins: [{removeViewBox: true}],
+      use: [imageminMozjpeg()]
     }))
     .pipe(gulp.dest('images'));
 });
diff --git a/images/3953273590_704e3899d5_m.jpg b/images/3953273590_704e3899d5_m.jpg
index 9e5fb866..fc2a8aad 100644
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diff --git a/images/bio-photo-2.jpg b/images/bio-photo-2.jpg
index 076a358f..3b743e4b 100644
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diff --git a/images/bio-photo.jpg b/images/bio-photo.jpg
index 7ddc1711..00084517 100644
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diff --git a/images/foo-bar-identity.jpg b/images/foo-bar-identity.jpg
index a17f31be..b48df3bb 100644
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diff --git a/images/mm-theme-post-600.jpg b/images/mm-theme-post-600.jpg
index 4ee5703e..795cf679 100644
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diff --git a/images/mm-theme-post-750.jpg b/images/mm-theme-post-750.jpg
index 663adc93..1161e1c1 100644
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diff --git a/images/paragraph-indent.png b/images/paragraph-indent.png
index d8f9145d..b4a2c481 100644
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diff --git a/images/paragraph-no-indent.png b/images/paragraph-no-indent.png
index e3193dee..3e0f9d26 100644
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diff --git a/images/unsplash-gallery-image-1-th.jpg b/images/unsplash-gallery-image-1-th.jpg
index b8fcb16f..2ec826c8 100644
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diff --git a/images/unsplash-gallery-image-1.jpg b/images/unsplash-gallery-image-1.jpg
index d0479110..86a9f3d6 100644
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diff --git a/images/unsplash-gallery-image-2-th.jpg b/images/unsplash-gallery-image-2-th.jpg
index 24e4b4ad..fafbf9aa 100644
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diff --git a/images/unsplash-gallery-image-2.jpg b/images/unsplash-gallery-image-2.jpg
index ec9d0e7c..d3b1ff54 100644
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diff --git a/images/unsplash-gallery-image-3-th.jpg b/images/unsplash-gallery-image-3-th.jpg
index a39e1d5a..41599cd8 100644
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diff --git a/images/unsplash-gallery-image-3.jpg b/images/unsplash-gallery-image-3.jpg
index f155f7e4..e67384e4 100644
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diff --git a/images/unsplash-gallery-image-4-th.jpg b/images/unsplash-gallery-image-4-th.jpg
index e42dc294..8d4e05d7 100644
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diff --git a/images/unsplash-gallery-image-4.jpg b/images/unsplash-gallery-image-4.jpg
index bb12a285..e387593f 100644
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diff --git a/images/unsplash-image-1.jpg b/images/unsplash-image-1.jpg
index 5d9b903f..99df5db4 100644
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diff --git a/images/unsplash-image-10.jpg b/images/unsplash-image-10.jpg
index bf40059b..4cff6f92 100644
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diff --git a/images/unsplash-image-2.jpg b/images/unsplash-image-2.jpg
index 1557c4c8..52869d05 100644
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diff --git a/images/unsplash-image-3.jpg b/images/unsplash-image-3.jpg
index 44b9bc23..11b57934 100644
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diff --git a/images/unsplash-image-4.jpg b/images/unsplash-image-4.jpg
index 9181a4f3..f6a5448a 100644
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diff --git a/images/unsplash-image-5.jpg b/images/unsplash-image-5.jpg
index 51718d64..ee29a68c 100644
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diff --git a/images/unsplash-image-6.jpg b/images/unsplash-image-6.jpg
index 3ae55ae2..808412eb 100644
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diff --git a/images/unsplash-image-7.jpg b/images/unsplash-image-7.jpg
index d342191d..0e24f816 100644
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diff --git a/images/unsplash-image-8.jpg b/images/unsplash-image-8.jpg
index 2cb9e699..66d254c5 100644
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diff --git a/images/unsplash-image-9.jpg b/images/unsplash-image-9.jpg
index 914b840d..4b07abb9 100644
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diff --git a/package.json b/package.json
index ee6eae1c..6e715813 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,9 @@
     "gulp-sass": "^2.2.0",
     "gulp-uglify": "^1.5.3",
     "gulp-uglifyjs": "^0.6.2",
-    "imagemin-pngquant": "^4.2.2",
     "jshint": "^2.9.1"
+  },
+  "dependencies": {
+    "imagemin-mozjpeg": "^5.1.0"
   }
 }