diff --git a/lib/rediff.js b/lib/rediff.js
index 7a742c3..3677536 100644
--- a/lib/rediff.js
+++ b/lib/rediff.js
@@ -48,7 +48,7 @@ const generateJobQueue = () => {
             const screenshots = { diff: config.resultsDir + specName + '-' + viewport + '-diff.png' };
             let workerJobs = [];
 
-            Object.keys(config.environments).forEach(function(env) {
+            Object.keys(config.environments).forEach(env => {
                 const outputFile = config.resultsDir + specName + '-' + viewport + '-' + env + '.png';
                 workerJobs.push({
                     viewport: {
@@ -116,7 +116,7 @@ const diffPixel = (pixel1, pixel2, match) => {
 
 const diffImages = (test, input1, input2, output) => {
     if (fs.existsSync(input1) && fs.existsSync(input2)) {
-        return diff.outputDiff(input1, input2, output, diffPixel).then(function(data) {
+        return diff.outputDiff(input1, input2, output, diffPixel).then(data => {
             test.diff = data.metric;
             return data.output;
         });
@@ -125,8 +125,8 @@ const diffImages = (test, input1, input2, output) => {
 };
 
 const convertImages = pngs => {
-    return Promise.map(pngs, function(fileToConvert) {
-        return new Promise(function(resolve) {
+    return Promise.map(pngs, fileToConvert => {
+        return new Promise(resolve => {
             if (fs.existsSync(fileToConvert)) {
                 convert(
                     {
@@ -134,9 +134,7 @@ const convertImages = pngs => {
                         output: fileToConvert.replace(/\.png$/, '.jpg'),
                         quality: 80,
                     },
-                    function() {
-                        resolve(fileToConvert);
-                    }
+                    () => resolve(fileToConvert)
                 );
             } else {
                 resolve(fileToConvert);
@@ -160,7 +158,7 @@ const gzipFiles = files => {
 };
 
 const removeFiles = files => {
-    return Promise.map(files, function(fileToRemove) {
+    return Promise.map(files, fileToRemove => {
         if (fs.existsSync(fileToRemove)) {
             fs.unlinkSync(fileToRemove);
         }
@@ -168,50 +166,25 @@ const removeFiles = files => {
 };
 
 const processJob = (jobs, test, specName) => {
-    const images = envNames.concat(['diff']).map(function(env) {
-        return test.screenshots[env];
-    });
+    const images = envNames.concat(['diff']).map(env => test.screenshots[env]);
 
-    const loImages = images.map(function(image) {
-        return image.replace(/\.png$/, '.jpg');
-    });
+    const loImages = images.map(image => image.replace(/\.png$/, '.jpg'));
 
-    const workerPromises = jobs.map(function(job) {
-        return worker.addSpec(job, handleError.bind(null, job, 'TestRunner'));
-    });
+    const workerPromises = jobs.map(job => worker.addSpec(job, handleError.bind(null, job, 'TestRunner')));
 
     return Promise.all(workerPromises)
-        .catch(function(err) {
-            handleError(test, 'Crawler', err);
-        })
-        .then(function() {
-            return diffImages(test, images[0], images[1], images[2]);
-        })
-        .catch(function(err) {
-            handleError(test, 'Comparison', err);
-        })
-        .then(function() {
-            return convertImages(images);
-        })
-        .then(function() {
-            return removeFiles(images);
-        })
-        .then(function() {
-            gzipFiles(loImages);
-        })
-        .catch(function(err) {
-            handleError(test, 'General', err);
-        })
-        .finally(function() {
-            reporter.push(test, specName);
-        });
+        .catch(err => handleError(test, 'Crawler', err))
+        .then(() => diffImages(test, images[0], images[1], images[2]))
+        .catch(err => handleError(test, 'Comparison', err))
+        .then(() => convertImages(images))
+        .then(() => removeFiles(images))
+        .then(() => gzipFiles(loImages))
+        .catch(err => handleError(test, 'General', err))
+        .finally(() => reporter.push(test, specName));
 };
 
-const processJobSet = job => {
-    return Promise.map(job.worker, function(jobs, idx) {
-        return processJob(job.worker[idx], job.tests[idx], job.spec.name);
-    });
-};
+const processJobSet = job =>
+    Promise.map(job.worker, (jobs, idx) => processJob(job.worker[idx], job.tests[idx], job.spec.name));
 
 const run = (cfg, specList) => {
     config = cfg;
@@ -222,14 +195,11 @@ const run = (cfg, specList) => {
 
     reporter.initialize(
         config,
-        queue.map(function(item) {
-            return item.spec;
-        })
+        queue.map(item => item.spec)
     );
 
-    Promise.map(queue, processJobSet).then(function() {
-        console.log('Test completed.');
-    });
+    Promise.map(queue, processJobSet)
+        .then(() => console.log('Test completed.'));
 };
 
 module.exports = run;
diff --git a/lib/reporter.js b/lib/reporter.js
index 5c0ccb7..4894b51 100644
--- a/lib/reporter.js
+++ b/lib/reporter.js
@@ -25,8 +25,8 @@ const report = () => {
 
 const initialize = (cfg, specsData) => {
     config = cfg;
-    specs = specsData.map(function(spec) {
-        return _.merge(
+    specs = specsData.map(spec =>
+        _.merge(
             {
                 // name, url
                 tests: {
@@ -36,8 +36,8 @@ const initialize = (cfg, specsData) => {
                 },
             },
             spec
-        );
-    });
+        )
+    );
 
     metadata = {
         tests: {
@@ -61,7 +61,7 @@ const push = (result, specName) => {
         metadata.tests.failing++;
     }
 
-    _.keys(result.screenshots).forEach(function(screenshot) {
+    _.keys(result.screenshots).forEach(screenshot => {
         result.screenshots[screenshot] = result.screenshots[screenshot]
             .replace(config.resultsDir, '')
             .replace(/\.png$/, '.jpg');
diff --git a/lib/util.js b/lib/util.js
index fdb62cd..f5b574e 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -5,7 +5,7 @@ const getSpecViewports = (viewports, filter) => {
         return viewports;
     }
     let result = {};
-    filter.forEach(function(name) {
+    filter.forEach(name => {
         if (!viewports[name]) {
             console.warn(
                 'WARNING: You are trying to use viewport "' +
diff --git a/lib/worker.js b/lib/worker.js
index d867110..be5d34b 100644
--- a/lib/worker.js
+++ b/lib/worker.js
@@ -13,12 +13,10 @@ function Worker(config) {
 
 Worker.prototype = {
     addSpec: function(spec, errorHandler) {
-        return new Promise(
-            function(resolve, reject) {
-                this.queue.push([spec, errorHandler, resolve, reject]);
-                this.handleQueue();
-            }.bind(this)
-        );
+        return new Promise((resolve, reject) => {
+            this.queue.push([spec, errorHandler, resolve, reject]);
+            this.handleQueue();
+        });
     },
 
     handleQueue: function() {
@@ -44,7 +42,7 @@ Worker.prototype = {
             body: JSON.stringify(body),
             headers: { 'Content-Type': 'application/json' },
         })
-            .then(function(response) {
+            .then(response => {
                 if (!response.ok || response.status < 200 || response.status >= 400) {
                     throw new Error(`External service error at ${response.url}/v1/screenshot/${body.url}`, {
                         status: response.status,
@@ -66,11 +64,7 @@ Worker.prototype = {
             .catch(error => {
                 reject({ spec: spec, error: error });
             })
-            .then(
-                function() {
-                    this.handleQueue();
-                }.bind(this)
-            );
+            .then(() => this.handleQueue());
     },
 };
 
diff --git a/package.json b/package.json
index 6d3b071..f334713 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rediff",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "Perceptual difference testing tool based on Pediff",
   "author": "Lukasz Blacha <lukasz.blacha@schibsted.pl>",
   "contributors": [