diff --git a/DESCRIPTION b/DESCRIPTION
index f997d8bb1f..e0baff8b7e 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: plotly
 Title: Create Interactive Web Graphics via 'plotly.js'
-Version: 3.4.1
+Version: 3.4.2
 Authors@R: c(person("Carson", "Sievert", role = c("aut", "cre"),
     email = "cpsievert1@gmail.com"),
     person("Chris", "Parmer", role = c("aut", "cph"),
diff --git a/NEWS b/NEWS
index 3c6256deb5..53264f9bac 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+3.4.2 -- 14 Mar 2016
+
+BUGFIX:
+
+Automatic resizing will now occur only when layout.autosize is true (the default). See #403.
+
+
 3.4.1 -- 13 Mar 2016
 
 BUGFIX:
diff --git a/inst/htmlwidgets/plotly.js b/inst/htmlwidgets/plotly.js
index f974afeaf9..8dbf13fd8b 100644
--- a/inst/htmlwidgets/plotly.js
+++ b/inst/htmlwidgets/plotly.js
@@ -8,7 +8,9 @@ HTMLWidgets.widget({
   },
   
   resize: function(el, width, height, instance) {
-    Plotly.relayout(el.id, {width: width, height: height});
+    if (instance.autosize) {
+      Plotly.relayout(el.id, {width: width, height: height});
+    }
   },  
   
   renderValue: function(el, x, instance) {
@@ -27,6 +29,7 @@ HTMLWidgets.widget({
     if (!instance.plotly) {
       Plotly.plot(graphDiv, x.data, x.layout, x.config);
       instance.plotly = true;
+      instance.autosize = x.layout.autosize;
     } else {
       Plotly.newPlot(graphDiv, x.data, x.layout);
     }