diff --git a/app/code/core/Mage/Adminhtml/Block/Dashboard/Graph.php b/app/code/core/Mage/Adminhtml/Block/Dashboard/Graph.php
index d402b7512dd..8f58e873b46 100644
--- a/app/code/core/Mage/Adminhtml/Block/Dashboard/Graph.php
+++ b/app/code/core/Mage/Adminhtml/Block/Dashboard/Graph.php
@@ -19,7 +19,7 @@ class Mage_Adminhtml_Block_Dashboard_Graph extends Mage_Adminhtml_Block_Dashboar
     /**
      * Api URL
      */
-    const API_URL = 'http://chart.apis.google.com/chart';
+    const API_URL = 'https://image-charts.com/chart';
 
     /**
      * All series
@@ -80,6 +80,8 @@ class Mage_Adminhtml_Block_Dashboard_Graph extends Mage_Adminhtml_Block_Dashboar
     /**
      * Google chart api data encoding
      *
+     * @deprecated since the Google Image Charts API not accessible from March 14, 2019
+     *
      * @var string
      */
     protected $_encoding = 'e';
@@ -172,7 +174,9 @@ public function getChartUrl($directUrl = true)
             'cht'  => 'lc',
             'chf'  => 'bg,s,f4f4f4|c,lg,90,ffffff,0.1,ededed,0',
             'chm'  => 'B,f4d4b2,0,0,0',
-            'chco' => 'db4814'
+            'chco' => 'db4814',
+            'chxs' => '0,0,11|1,0,11',
+            'chma' => '15,15,15,15'
         );
 
         $this->_allSeries = $this->getRowsData($this->_dataRows);
@@ -246,20 +250,11 @@ public function getChartUrl($directUrl = true)
         $this->_axisLabels['x'] = $dates;
         $this->_allSeries = $datas;
 
-        //Google encoding values
-        if ($this->_encoding == "s") {
-            // simple encoding
-            $params['chd'] = "s:";
-            $dataDelimiter = "";
-            $dataSetdelimiter = ",";
-            $dataMissing = "_";
-        } else {
-            // extended encoding
-            $params['chd'] = "e:";
-            $dataDelimiter = "";
-            $dataSetdelimiter = ",";
-            $dataMissing = "__";
-        }
+        // Image-Charts Awesome data format values
+        $params['chd'] = "a:";
+        $dataDelimiter = ",";
+        $dataSetdelimiter = "|";
+        $dataMissing = "_";
 
         // process each string in the array, and find the max length
         foreach ($this->getAllSeries() as $index => $serie) {
@@ -305,38 +300,14 @@ public function getChartUrl($directUrl = true)
 
         foreach ($this->getAllSeries() as $index => $serie) {
             $thisdataarray = $serie;
-            if ($this->_encoding == "s") {
-                // SIMPLE ENCODING
-                for ($j = 0; $j < sizeof($thisdataarray); $j++) {
-                    $currentvalue = $thisdataarray[$j];
-                    if (is_numeric($currentvalue)) {
-                        $ylocation = round((strlen($this->_simpleEncoding)-1) * ($yorigin + $currentvalue) / $yrange);
-                        array_push($chartdata, substr($this->_simpleEncoding, $ylocation, 1) . $dataDelimiter);
-                    } else {
-                        array_push($chartdata, $dataMissing . $dataDelimiter);
-                    }
-                }
-                // END SIMPLE ENCODING
-            } else {
-                // EXTENDED ENCODING
-                for ($j = 0; $j < sizeof($thisdataarray); $j++) {
-                    $currentvalue = $thisdataarray[$j];
-                    if (is_numeric($currentvalue)) {
-                        if ($yrange) {
-                         $ylocation = (4095 * ($yorigin + $currentvalue) / $yrange);
-                        } else {
-                          $ylocation = 0;
-                        }
-                        $firstchar = floor($ylocation / 64);
-                        $secondchar = $ylocation % 64;
-                        $mappedchar = substr($this->_extendedEncoding, $firstchar, 1)
-                            . substr($this->_extendedEncoding, $secondchar, 1);
-                        array_push($chartdata, $mappedchar . $dataDelimiter);
-                    } else {
-                        array_push($chartdata, $dataMissing . $dataDelimiter);
-                    }
+            for ($j = 0; $j < sizeof($thisdataarray); $j++) {
+                $currentvalue = $thisdataarray[$j];
+                if (is_numeric($currentvalue)) {
+                    $ylocation = $yorigin + $currentvalue;
+                    array_push($chartdata, $ylocation . $dataDelimiter);
+                } else {
+                    array_push($chartdata, $dataMissing . $dataDelimiter);
                 }
-                // ============= END EXTENDED ENCODING =============
             }
             array_push($chartdata, $dataSetdelimiter);
         }