diff --git a/slack-api.cabal b/slack-api.cabal
--- a/slack-api.cabal
+++ b/slack-api.cabal
@@ -1,5 +1,5 @@
 Name:                slack-api
-Version:             0.7
+Version:             0.8
 Synopsis:            Bindings to the Slack RTM API.
 Description:         This library provides bindings to the <https://api.slack.com/rtm Slack Real Time Messaging API>.
                      Users should find it easy to program their own Slack bots using the functionality found in `Web.Slack`.
diff --git a/src/Web/Slack/Types/Preferences.hs b/src/Web/Slack/Types/Preferences.hs
--- a/src/Web/Slack/Types/Preferences.hs
+++ b/src/Web/Slack/Types/Preferences.hs
@@ -54,8 +54,6 @@
                  , _prefTabUiReturnSelects              :: Bool
                  , _prefObeyInlineImgLimit              :: Bool
                  , _prefNewMsgSnd                       :: Text
-                 , _prefCollapsible                     :: Bool
-                 , _prefCollapsibleByClick              :: Bool
                  , _prefRequireAt                       :: Bool
                  , _prefExpandNonMediaAttachments       :: Bool
                  , _prefShowTyping                      :: Bool