diff --git a/process-streaming.cabal b/process-streaming.cabal
--- a/process-streaming.cabal
+++ b/process-streaming.cabal
@@ -1,5 +1,5 @@
 name:          process-streaming
-version:       0.6.2.0
+version:       0.6.2.1
 license:       BSD3
 license-file:  LICENSE
 data-files:    
@@ -28,7 +28,6 @@
         transformers-compat == 0.3.*,
         free >= 4.2 && < 5,
         bifunctors >= 4.1 && < 5,
-        async >= 2.0.1 && < 2.1,
         process >= 1.2.0 && < 1.3,
         pipes >= 4.1.2 && < 4.2,
         pipes-bytestring >= 2.1.0 && < 2.2,