diff --git a/Casks/rstudio-preview.rb b/Casks/rstudio-preview.rb
index b58594909..2d1254383 100644
--- a/Casks/rstudio-preview.rb
+++ b/Casks/rstudio-preview.rb
@@ -1,7 +1,7 @@
 class RstudioPreview < Cask
-  url 'https://s3.amazonaws.com/rstudio-dailybuilds/RStudio-0.98.477.dmg'
+  url 'https://s3.amazonaws.com/rstudio-dailybuilds/RStudio-0.98.480.dmg'
   homepage 'http://www.rstudio.com/ide/download/preview'
-  version '0.98.477'
-  sha1 '6337d117c59b03270c51f796862141289200ac1d'
+  version '0.98.480'
+  sha1 'c0d4681b4328b4e19a004125c4d15e748a49bf4e'
   link 'RStudio.app'
 end