diff --git a/google-analytics-chart.html b/google-analytics-chart.html
index dc2b156..73e5c27 100644
--- a/google-analytics-chart.html
+++ b/google-analytics-chart.html
@@ -16,7 +16,7 @@
       metrics="ga:sessions"
       dimensions="ga:country"
       sort="-ga:sessions"
-      maxResults="5">
+      max-results="5">
     </google-analytics-chart>
 
 @element google-analytics-chart
diff --git a/google-analytics-dashboard.html b/google-analytics-dashboard.html
index 9d3b3e0..31f8e55 100644
--- a/google-analytics-dashboard.html
+++ b/google-analytics-dashboard.html
@@ -19,8 +19,8 @@
         metrics="ga:sessions"
         dimensions="ga:country"
         sort="-ga:sessions"
-        maxResults="5"
-        chartType="column">
+        max-results="5"
+        chart-type="column">
       </google-analytics-chart>
 
     </google-analytics-dashboard>
diff --git a/google-analytics-date-selector.html b/google-analytics-date-selector.html
index 890fa0d..2de2474 100644
--- a/google-analytics-date-selector.html
+++ b/google-analytics-date-selector.html
@@ -8,8 +8,8 @@
     <google-analytics-dashboard>
 
       <google-analytics-date-selector
-        startDate="30daysAgo"
-        endDate="today">
+        start-date="30daysAgo"
+        end-date="today">
       </google-analytics-date-selector>
 
       <google-analytics-chart
diff --git a/google-analytics-query.html b/google-analytics-query.html
index 30a81d6..6ad3a44 100644
--- a/google-analytics-query.html
+++ b/google-analytics-query.html
@@ -11,7 +11,7 @@
       metrics="ga:sessions"
       dimensions="ga:country"
       sort="-ga:sessions"
-      maxResults="5">
+      max-results="5">
     </google-analytics-query>
 
 @element google-analytics-query