diff --git a/rainbow.cabal b/rainbow.cabal
--- a/rainbow.cabal
+++ b/rainbow.cabal
@@ -3,11 +3,11 @@
 -- http://www.github.com/massysett/cartel
 --
 -- Script name used to generate: genCabal.hs
--- Generated on: 2015-04-26 13:24:27.048354 EDT
+-- Generated on: 2015-04-27 19:56:14.743912 EDT
 -- Cartel library version: 0.14.2.6
 
 name: rainbow
-version: 0.26.0.0
+version: 0.26.0.2
 cabal-version: >= 1.18
 license: BSD3
 license-file: LICENSE
diff --git a/tests/Rainbow/QuickCheck.hs b/tests/Rainbow/QuickCheck.hs
--- a/tests/Rainbow/QuickCheck.hs
+++ b/tests/Rainbow/QuickCheck.hs
@@ -16,8 +16,9 @@
 import Control.Applicative
 import Test.QuickCheck
 import Rainbow.Types
+import Data.Typeable
 
-instance Arbitrary a => Arbitrary (Color a) where
+instance (Typeable a, Arbitrary a) => Arbitrary (Color a) where
   arbitrary = Color <$> arbitrary
   shrink = genericShrink
 
@@ -60,7 +61,7 @@
     . coarbitrary x6
     . coarbitrary x7
 
-instance Arbitrary a => Arbitrary (Style a) where
+instance (Arbitrary a, Typeable a) => Arbitrary (Style a) where
   arbitrary = Style <$> arbitrary <*> arbitrary <*> arbitrary
   shrink = genericShrink
 
@@ -78,7 +79,7 @@
   coarbitrary (Scheme a b) = coarbitrary a . coarbitrary b
 
 
-instance Arbitrary a => Arbitrary (Chunk a) where
+instance (Arbitrary a, Typeable a) => Arbitrary (Chunk a) where
   arbitrary = Chunk <$> arbitrary <*> arbitrary
   shrink = genericShrink