diff --git a/Data/Convertible/Instances/Time.hs b/Data/Convertible/Instances/Time.hs
--- a/Data/Convertible/Instances/Time.hs
+++ b/Data/Convertible/Instances/Time.hs
@@ -32,7 +32,9 @@
 import Data.Time.Clock
 import Data.Time.Clock.POSIX
 import Data.Time.Calendar.OrdinalDate
+#ifndef TIME_GT_113
 import Data.Typeable
+#endif
 import Data.Ratio
 import Foreign.C.Types
 
@@ -58,11 +60,13 @@
 
 ------------------------------ POSIX and UTC times
 
+#ifndef TIME_GT_113
 instance Typeable NominalDiffTime where
     typeOf _ = mkTypeName "NominalDiffTime"
 
 instance Typeable UTCTime where
     typeOf _ = mkTypeName "UTCTime"
+#endif
 
 {- Covered under Real a
 instance Convertible Rational POSIXTime where
diff --git a/convertible.cabal b/convertible.cabal
--- a/convertible.cabal
+++ b/convertible.cabal
@@ -1,5 +1,5 @@
 Name: convertible
-Version: 1.0.6
+Version: 1.0.7
 License: LGPL
 Maintainer: John Goerzen <jgoerzen@complete.org>
 Author: John Goerzen
@@ -40,10 +40,18 @@
   description: Build the executable to run unit tests
   default: False
 
+flag time_gte_113
+  description: time > 1.1.3 has defined some more instances so omit them here
+
 library
   if flag(splitBase)
-    Build-Depends: base>=3 && <4, old-time, time>=1.1.2.4 && <1.1.3,
+    Build-Depends: base>=3 && <5, old-time, time>=1.1.2.4 && <=1.1.4,
      bytestring, containers, old-locale
+    if flag(time_gte_113)
+      Build-Depends: time>=1.1.3
+      CPP-OPTIONS: -DTIME_GT_113
+    else
+      Build-Depends: time<1.1.3
   else
     Build-Depends: base<3
   Build-Depends: mtl