diff --git a/eprocess.cabal b/eprocess.cabal
--- a/eprocess.cabal
+++ b/eprocess.cabal
@@ -1,5 +1,5 @@
 name: eprocess
-version: 1.7.1
+version: 1.7.2
 cabal-version: >=1.6
 build-type: Simple
 license: BSD3
@@ -23,8 +23,8 @@
 
 Library
     build-depends: base == 4.*,
-                   mtl == 2.2.*,
-                   exceptions == 0.8.*
+                   mtl >= 2.1 && < 2.3,
+                   exceptions >= 0.6 && < 0.9
     exposed-modules: Control.Concurrent.Process
     hs-source-dirs: src