diff --git a/README.mkd b/README.mkd
index 54403db..1087dc2 100644
--- a/README.mkd
+++ b/README.mkd
@@ -145,7 +145,7 @@ By default the signs are updated as follows:
 | Save a buffer             | So non-realtime signs are up to date | [always]               |
 | Change a file outside Vim | To notice `git stash`                | [always]               |
 
-The length of time Vim waits after you stop typing before it triggers the plugin is governed by the setting `updatetime`.  This defaults to `4000` milliseconds which is rather too long.  I recommend around `750` milliseconds but it depends on your system and your preferences.  Note that in terminal Vim an `updatetime` of less than approximately `1000` milliseconds can lead to random highlighting glitches; the lower the `updatetime`, the more glitches.  This is due to a bug in Vim.
+The length of time Vim waits after you stop typing before it triggers the plugin is governed by the setting `updatetime`.  This defaults to `4000` milliseconds which is rather too long.  I recommend around `750` milliseconds but it depends on your system and your preferences.  Note that in terminal Vim pre-7.4.427 an `updatetime` of less than approximately `1000` milliseconds can lead to random highlighting glitches; the lower the `updatetime`, the more glitches.
 
 If you experience a lag, you can trade speed for accuracy: