diff --git a/static/js/info.js b/static/js/info.js
index c02b836f..22df5ece 100644
--- a/static/js/info.js
+++ b/static/js/info.js
@@ -92,7 +92,7 @@ pandora.ui.info = function() {
         } else if (view == 'video') {
             pandora.api.get({
                 id: id,
-                keys: ['duration', 'posterFrame', 'rendered', 'videoRatio']
+                keys: ['duration', 'posterFrame', 'rendered', 'videoRatio', 'modified']
             }, function(result) {
                 emptyInfo();
                 if (result.data && result.data.rendered) {
@@ -102,6 +102,7 @@ pandora.ui.info = function() {
                                 frameRatio: result.data.videoRatio,
                                 height: pandora.getInfoHeight(true),
                                 id: id,
+                                modified: result.data.modified,
                                 position: !ui.item && ui.listView == 'timelines'
                                     ? (ui.videoPoints[id] ? ui.videoPoints[id].position : 0)
                                     : result.data.posterFrame,
diff --git a/static/js/listDialog.js b/static/js/listDialog.js
index c153130d..18791f7f 100644
--- a/static/js/listDialog.js
+++ b/static/js/listDialog.js
@@ -536,6 +536,7 @@ pandora.ui.listIconPanel = function(listData) {
                 frameRatio: itemData.videoRatio,
                 height: 256,
                 id: itemData.id,
+                modified: itemData.modified,
                 position: position,
                 width: 256
             })
diff --git a/static/js/videoPreview.js b/static/js/videoPreview.js
index c036830a..2ae638c6 100644
--- a/static/js/videoPreview.js
+++ b/static/js/videoPreview.js
@@ -14,13 +14,13 @@ pandora.ui.videoPreview = function(data) {
                         : Ox.max(pandora.site.video.resolutions);
                 return pandora.getMediaURL('/' + data.id + '/' + resolution + 'p' + (
                     Ox.isUndefined(position) ? '' : position
-                ) + '.jpg');
+                ) + '.jpg?' + data.modified);
             },
             frameRatio: data.frameRatio,
             height: data.height,
             position: data.position,
             scaleToFill: true,
-            timeline: pandora.getMediaURL('/' + data.id + '/timeline16p.jpg'),
+            timeline: pandora.getMediaURL('/' + data.id + '/timeline16p.jpg?' + data.modified),
             videoTooltip: data.videoTooltip,
             width: data.width
         });