diff --git a/Casks/rstudio-preview.rb b/Casks/rstudio-preview.rb
index 2d8e42be7..680e9351a 100644
--- a/Casks/rstudio-preview.rb
+++ b/Casks/rstudio-preview.rb
@@ -1,6 +1,6 @@
 cask 'rstudio-preview' do
-  version '0.99.1277'
-  sha256 '5b05defbb7b02bcbfa9e719cfa13946b8a8fc9b080a3dbd46b95e96987d62926'
+  version '0.99.1280'
+  sha256 '3da3f89789e51b3504bd40e2b3f2ca9d499133e1083c94251dead58b471da1d2'
 
   # amazonaws.com/rstudio-dailybuilds was verified as official when first introduced to the cask
   url "https://s3.amazonaws.com/rstudio-dailybuilds/RStudio-#{version}.dmg"