diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,7 @@
+* 3000.10.4.2 (23 February 2015)
+
+  - add mtl-compat dependency
+
 * 3000.10.4.1 (22 February 2015)
 
   - Fix build on GHC 7.4
diff --git a/haxr.cabal b/haxr.cabal
--- a/haxr.cabal
+++ b/haxr.cabal
@@ -1,5 +1,5 @@
 Name: haxr
-Version: 3000.10.4.1
+Version: 3000.10.4.2
 Cabal-version: >=1.10
 Build-type: Simple
 Copyright: Bjorn Bringert, 2003-2006
@@ -34,6 +34,7 @@
 Library
   Build-depends: base < 5,
                  mtl,
+                 mtl-compat,
                  network < 2.7,
                  HaXml >= 1.22 && < 1.26,
                  HTTP >= 4000,