diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -57,7 +57,7 @@
 A single dispatcher process sends a `Start`, some `Work` and a
 `Stop` message to a `Pool` that spawns and dispatches the message
 
-Like the previous benchmark this is a rather long running test 
+This is a rather long running test,
 executed with capped memory so that when space is leaked, it 
 will crash the benchmark.
 
diff --git a/rio-process-pool.cabal b/rio-process-pool.cabal
--- a/rio-process-pool.cabal
+++ b/rio-process-pool.cabal
@@ -1,6 +1,6 @@
 cabal-version:  3.0
 name:           rio-process-pool
-version:        1.0.0
+version:        1.0.1
 description:    Please see the README on GitHub at <https://github.com/sheyll/rio-process-pool#readme>
 synopsis:       A library for process pools coupled with asynchronous message queues
 homepage:       https://github.com/sheyll/rio-process-pool#readme
@@ -8,7 +8,7 @@
 author:         Sven Heyll
 maintainer:     sven.heyll@gmail.com
 category:       Concurrency
-tested-with:    GHC==8.10.4,GHC==8.10.3
+tested-with:    GHC==8.10.5,GHC==8.10.4,GHC==8.10.3
 copyright:      Copyright Sven Heyll
 license:        BSD-2-Clause
 license-file:   LICENSE
diff --git a/src/RIO/ProcessPool/Broker.hs b/src/RIO/ProcessPool/Broker.hs
--- a/src/RIO/ProcessPool/Broker.hs
+++ b/src/RIO/ProcessPool/Broker.hs
@@ -47,7 +47,6 @@
   ( IsMessageBox (Input, newInput, receive),
     IsMessageBoxArg (MessageBox, newMessageBox),
   )
-import Control.Concurrent.Async(AsyncCancelled)  
 
 -- | Spawn a broker with a new 'MessageBox',
 --  and return its message 'Input' channel as well as