@@ -237,6 +237,7 @@ import Control.Exception hiding (Handler (..), TypeError)
237237import Control.Monad.Base
238238import Control.Monad.Catch (Handler (..))
239239import Control.Monad.IO.Class
240+import Control.Monad.IO.Unlift
240241import Control.Monad.Reader
241242import Control.Monad.Trans.Control
242243import Control.Retry
@@ -719,7 +720,8 @@ newtype Req a = Req (ReaderT HttpConfig IO a)
719720 ( Functor,
720721 Applicative,
721722 Monad,
722− MonadIO
723+ MonadIO,
724+ MonadUnliftIO
723725 )
724726
725727instance MonadBase IO Req where