diff --git a/pipes-concurrency.cabal b/pipes-concurrency.cabal
--- a/pipes-concurrency.cabal
+++ b/pipes-concurrency.cabal
@@ -1,5 +1,5 @@
 Name: pipes-concurrency
-Version: 2.0.6
+Version: 2.0.7
 Cabal-Version: >=1.8.0.2
 Build-Type: Simple
 License: BSD3
@@ -33,7 +33,7 @@
     Build-Depends:
         base          >= 4     && < 5  ,
         contravariant >= 1.3.3 && < 1.5,
-        pipes         >= 4.0   && < 4.3,
+        pipes         >= 4.0   && < 4.4,
         stm           >= 2.4.3 && < 2.5,
         void          >= 0.6   && < 1
     Exposed-Modules:
@@ -47,7 +47,7 @@
     HS-Source-Dirs: tests .
     Build-Depends:
         base              >= 4     && < 5  ,
-        pipes             >= 4.0.0 && < 4.3,
+        pipes             >= 4.0.0 && < 4.4,
         pipes-concurrency >= 2.0.0 && < 2.1,
         stm               >= 2.4.3 && < 2.5,
         async             >= 2.0   && < 2.2