diff --git a/safecopy.cabal b/safecopy.cabal
--- a/safecopy.cabal
+++ b/safecopy.cabal
@@ -3,10 +3,10 @@
 -- http://www.haskell.org/cabal/release/cabal-latest/doc/users-guide/authors.html#pkg-descr.
 -- The name of the package.
 Name:                safecopy
-Version:             0.9.1
+Version:             0.9.2
 Synopsis:            Binary serialization with version control.
 Description:         An extension to Data.Serialize with built-in version control.
-Homepage:            http://acid-state.seize.it/safecopy
+Homepage:            https://github.com/acid-state/safecopy
 License:             PublicDomain
 Author:              David Himmelstrup, Felipe Lessa
 Maintainer:          Lemmih <lemmih@gmail.com>
diff --git a/test/instances.hs b/test/instances.hs
--- a/test/instances.hs
+++ b/test/instances.hs
@@ -32,6 +32,7 @@
 import qualified Data.Vector.Storable as VS
 import qualified Data.Vector.Unboxed as VU
 
+#if ! MIN_VERSION_QuickCheck(2,9,0)
 instance (Arbitrary a, Arbitrary b, Arbitrary c, Arbitrary d, Arbitrary e, Arbitrary f) =>
          Arbitrary (a,b,c,d,e,f) where
    arbitrary = (,,,,,) <$> arbitrary <*> arbitrary <*> arbitrary <*>
@@ -41,6 +42,7 @@
          Arbitrary (a,b,c,d,e,f,g) where
    arbitrary = (,,,,,,) <$> arbitrary <*> arbitrary <*> arbitrary <*>
                             arbitrary <*> arbitrary <*> arbitrary <*> arbitrary
+#endif
 
 #if ! MIN_VERSION_QuickCheck(2,8,2)
 instance (Arbitrary a) => Arbitrary (V.Vector a) where
@@ -61,7 +63,9 @@
 deriving instance (Show a) => Show (Prim a)
 
 deriving instance Eq ZonedTime
+#if ! MIN_VERSION_time(1,6,0)
 deriving instance Show UniversalTime
+#endif
 
 -- | Equality on the 'Right' value, showing the unequal value on failure;
 -- or explicit failure using the 'Left' message without equality testing.
@@ -115,7 +119,11 @@
 #endif
    def <- a
 
+#if MIN_VERSION_template_haskell(2,11,0)
+   let instances (ClassI _ decs) = [ typ | InstanceD _ _ (AppT _ typ) _ <- decs ]
+#else
    let instances (ClassI _ decs) = [ typ | InstanceD _ (AppT _ typ) _ <- decs ]
+#endif
        instances _ = []
        types = map instances classes