diff --git a/yesod-core/ChangeLog.md b/yesod-core/ChangeLog.md
index 881c0e87..ef898d9e 100644
--- a/yesod-core/ChangeLog.md
+++ b/yesod-core/ChangeLog.md
@@ -1,5 +1,9 @@
 # ChangeLog for yesod-core
 
+## 1.6.18.3
+
+* Remove mention of an oudated Yesod type (`GHandler`) from the docs for `handlerToIO`. []()
+
 ## 1.6.18.2
 
 * Recommends `.yesodroutes` as the file extension for Yesod routes files. [#1686](https://github.com/yesodweb/yesod/pull/1686)
diff --git a/yesod-core/src/Yesod/Core/Handler.hs b/yesod-core/src/Yesod/Core/Handler.hs
index 8237917a..d654a75f 100644
--- a/yesod-core/src/Yesod/Core/Handler.hs
+++ b/yesod-core/src/Yesod/Core/Handler.hs
@@ -369,10 +369,10 @@ getPostParams = do
 getCurrentRoute :: MonadHandler m => m (Maybe (Route (HandlerSite m)))
 getCurrentRoute = rheRoute <$> askHandlerEnv
 
--- | Returns a function that runs 'HandlerT' actions inside @IO@.
+-- | Returns a function that runs 'HandlerFor' actions inside @IO@.
 --
--- Sometimes you want to run an inner 'HandlerT' action outside
--- the control flow of an HTTP request (on the outer 'HandlerT'
+-- Sometimes you want to run an inner 'HandlerFor' action outside
+-- the control flow of an HTTP request (on the outer 'HandlerFor'
 -- action).  For example, you may want to spawn a new thread:
 --
 -- @
@@ -380,30 +380,30 @@ getCurrentRoute = rheRoute <$> askHandlerEnv
 -- getFooR = do
 --   runInnerHandler <- handlerToIO
 --   liftIO $ forkIO $ runInnerHandler $ do
---     /Code here runs inside GHandler but on a new thread./
---     /This is the inner GHandler./
+--     /Code here runs inside HandlerFor but on a new thread./
+--     /This is the inner HandlerFor./
 --     ...
 --   /Code here runs inside the request's control flow./
---   /This is the outer GHandler./
+--   /This is the outer HandlerFor./
 --   ...
 -- @
 --
 -- Another use case for this function is creating a stream of
--- server-sent events using 'GHandler' actions (see
+-- server-sent events using 'HandlerFor' actions (see
 -- @yesod-eventsource@).
 --
--- Most of the environment from the outer 'GHandler' is preserved
--- on the inner 'GHandler', however:
+-- Most of the environment from the outer 'HandlerFor' is preserved
+-- on the inner 'HandlerFor', however:
 --
 --  * The request body is cleared (otherwise it would be very
 --  difficult to prevent huge memory leaks).
 --
 --  * The cache is cleared (see 'CacheKey').
 --
--- Changes to the response made inside the inner 'GHandler' are
+-- Changes to the response made inside the inner 'HandlerFor' are
 -- ignored (e.g., session variables, cookies, response headers).
--- This allows the inner 'GHandler' to outlive the outer
--- 'GHandler' (e.g., on the @forkIO@ example above, a response
+-- This allows the inner 'HandlerFor' to outlive the outer
+-- 'HandlerFor' (e.g., on the @forkIO@ example above, a response
 -- may be sent to the client without killing the new thread).
 handlerToIO :: MonadIO m => HandlerFor site (HandlerFor site a -> m a)
 handlerToIO =
diff --git a/yesod-core/yesod-core.cabal b/yesod-core/yesod-core.cabal
index 86f030f0..ce9c902c 100644
--- a/yesod-core/yesod-core.cabal
+++ b/yesod-core/yesod-core.cabal
@@ -1,5 +1,5 @@
 name:            yesod-core
-version:         1.6.18.2
+version:         1.6.18.3
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>