diff --git a/changelog b/changelog
--- a/changelog
+++ b/changelog
@@ -1,3 +1,6 @@
+0.3.4.11
+	* Support tasty-ant-xml-1.1.0
+
 0.3.4.10
 	* Tighten lower bound on vector from 0.5 to 0.7 because building with
 	  vector < 0.7 results in a build error.
diff --git a/scientific.cabal b/scientific.cabal
--- a/scientific.cabal
+++ b/scientific.cabal
@@ -1,5 +1,5 @@
 name:                scientific
-version:             0.3.4.10
+version:             0.3.4.11
 synopsis:            Numbers represented using scientific notation
 description:
   @Data.Scientific@ provides the number type 'Scientific'. Scientific numbers are
@@ -84,7 +84,6 @@
 
   if flag(integer-simple)
       build-depends: integer-simple
-      CPP-options: -DINTEGER_SIMPLE
   else
       build-depends: integer-gmp
 
@@ -102,7 +101,7 @@
                , base             >= 4.3   && < 4.10
                , binary           >= 0.4.1 && < 0.9
                , tasty            >= 0.5   && < 0.12
-               , tasty-ant-xml    >= 1.0   && < 1.1
+               , tasty-ant-xml    >= 1.0   && < 1.2
                , tasty-hunit      >= 0.8   && < 0.10
                , tasty-smallcheck >= 0.2   && < 0.9
                , tasty-quickcheck >= 0.8   && < 0.9