diff --git a/package.json b/package.json
index 1b0cb966..32b3f525 100644
--- a/package.json
+++ b/package.json
@@ -94,9 +94,9 @@
         "c9.ide.navigate": "#c191d9b92f",
         "c9.ide.newresource": "#981a408a7b",
         "c9.ide.openfiles": "#7fa4a97fed",
-        "c9.ide.preview": "#72a4521169",
+        "c9.ide.preview": "#23b5e2149d",
         "c9.ide.preview.browser": "#cec211a76a",
-        "c9.ide.preview.markdown": "#58352ce683",
+        "c9.ide.preview.markdown": "#26a35d8e39",
         "c9.ide.pubsub": "#a85fb27eca",
         "c9.ide.readonly": "#e67bb593bd",
         "c9.ide.recentfiles": "#7c099abf40",