diff --git a/ListLike.cabal b/ListLike.cabal
--- a/ListLike.cabal
+++ b/ListLike.cabal
@@ -1,5 +1,5 @@
 Name: ListLike
-Version: 4.5
+Version: 4.5.1
 License: BSD3
 Maintainer: John Lato <jwlato@gmail.com>
 Author: John Goerzen
@@ -54,7 +54,7 @@
                 ,bytestring >= 0.9.1 && < 0.11
                 ,array      >= 0.3   && < 0.6
                 ,text       >= 0.11  && < 1.3
-                ,vector     >= 0.5   && < 0.12
+                ,vector     >= 0.5   && < 0.13
                 ,dlist      >= 0.7   && < 0.9
                 ,fmlist     >= 0.8   && < 0.10
                 ,utf8-string
diff --git a/testsrc/runtests.hs b/testsrc/runtests.hs
--- a/testsrc/runtests.hs
+++ b/testsrc/runtests.hs
@@ -1,4 +1,5 @@
-{-# LANGUAGE ScopedTypeVariables
+{-# LANGUAGE CPP
+            ,ScopedTypeVariables
             ,RankNTypes
             ,ExistentialQuantification
             ,MultiParamTypeClasses
@@ -6,6 +7,10 @@
             ,FlexibleInstances
             ,UndecidableInstances
             ,FlexibleContexts #-}
+
+#if __GLASGOW_HASKELL__ >= 708
+{-# LANGUAGE AllowAmbiguousTypes #-}
+#endif
 
 {-
 Copyright (C) 2007 John Goerzen <jgoerzen@complete.org>