diff --git a/webpages/public/histogram.html b/webpages/public/histogram.html
index c861b25..f404376 100644
--- a/webpages/public/histogram.html
+++ b/webpages/public/histogram.html
@@ -25,13 +25,17 @@
 
         var chart_lines = new google.visualization.LineChart(document.getElementById('chart_lines'));
 
-        $.getJSON('data/histochart.json', function(d) {
-            var dat = d.pingtimes;
-            for(var prop in dat) {
-                data.addRow([new Date(prop), dat[prop].sum ]);
-            }
-            chart_lines.draw(data, options_lines);
-        });
+        var fRepaint = function () {
+            $.getJSON('data/histochart.json', function(d) {
+                var dat = d.pingtimes;
+                for(var prop in dat) {
+                    data.addRow([new Date(prop), dat[prop].sum ]);
+                }
+                chart_lines.draw(data, options_lines);
+            });
+            setTimeout(fRepaint, 5*60*1000);
+        };
+        fRepaint();
     }
     </script>
     <div id="chart_lines" style="width: 900px; height: 500px;"></div>