diff --git a/hexpat.cabal b/hexpat.cabal
--- a/hexpat.cabal
+++ b/hexpat.cabal
@@ -1,6 +1,6 @@
 Cabal-Version: >= 1.6
 Name: hexpat
-Version: 0.18
+Version: 0.18.1
 Synopsis: XML parser/formatter based on expat
 Description:
   This package provides a general purpose Haskell XML library using Expat to
@@ -82,7 +82,7 @@
     transformers,
     text >= 0.5,
     utf8-string >= 0.3.3,
-    parallel,
+    parallel < 3.1.0.0,
     containers,
     extensible-exceptions >= 0.1 && < 0.2,
     List >= 0.4