diff --git a/graphs.cabal b/graphs.cabal
--- a/graphs.cabal
+++ b/graphs.cabal
@@ -1,6 +1,6 @@
 name:          graphs
 category:      Data Structures
-version:       0.3.2.1
+version:       0.3.2.2
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -18,6 +18,10 @@
   location: git://github.com/ekmett/graphs.git
 
 library
+  other-extensions:
+    TypeFamilies
+    FlexibleContexts
+
   build-depends: 
     base >= 4 && < 5,
     array >= 0.3 && < 0.5,