diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,7 @@
+## [0.2.0.12](https://github.com/diagrams/active/tree/v0.2.0.12) (2016-10-14)
+
+- allow `lens-4.15`
+
 ## [v0.2.0.11](https://github.com/diagrams/active/tree/v0.2.0.11) (2016-08-01)
 
 - update test suite for `QuickCheck-2.9`
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -2,6 +2,7 @@
 
 Andy Gill <andygill@ku.edu>
 Ben Gamari <ben@smart-cactus.org>
+Bollu <siddu.druid@gmail.com>
 Brent Yorgey <byorgey@gmail.com>
 Christopher Chalmers <c.chalmers@me.com>
 Daniel Bergey <bergey@alum.mit.edu>
diff --git a/active.cabal b/active.cabal
--- a/active.cabal
+++ b/active.cabal
@@ -1,18 +1,18 @@
 name:                active
-version:             0.2.0.11
+version:             0.2.0.12
 synopsis:            Abstractions for animation
 description:         "Active" abstraction for animated things with finite start and end times.
 license:             BSD3
 license-file:        LICENSE
 author:              Brent Yorgey
-maintainer:          byorgey@cis.upenn.edu
+maintainer:          byorgey@gmail.com
 copyright:           (c) 2011-2015 Brent Yorgey
 category:            Data
 build-type:          Simple
 cabal-version:       >=1.10
 extra-source-files:  CHANGES, README.markdown, diagrams/*.svg
 extra-doc-files:     diagrams/*.svg
-tested-with:         GHC == 7.6.3, GHC == 7.8.4, GHC == 7.10.2
+tested-with:         GHC == 7.6.3, GHC == 7.8.4, GHC == 7.10.2, GHC == 8.0.1
 bug-reports:         https://github.com/diagrams/active/issues
 source-repository head
   type:     git
@@ -24,7 +24,7 @@
                        vector >= 0.10,
                        semigroups >= 0.1 && < 0.19,
                        semigroupoids >= 1.2 && < 5.2,
-                       lens >= 4.0 && < 4.15,
+                       lens >= 4.0 && < 4.16,
                        linear >= 1.14 && < 1.21
   hs-source-dirs:      src
   default-language:    Haskell2010
@@ -36,8 +36,9 @@
                        vector >= 0.10,
                        semigroups >= 0.1 && < 0.19,
                        semigroupoids >= 1.2 && < 5.2,
-                       lens >= 4.0 && < 4.15,
+                       lens >= 4.0 && < 4.16,
                        linear >= 1.14 && < 1.21,
                        QuickCheck >= 2.9 && < 2.10
+    other-modules:     Data.Active
     hs-source-dirs:    src, test
     default-language:  Haskell2010
diff --git a/test/active-tests.hs b/test/active-tests.hs
--- a/test/active-tests.hs
+++ b/test/active-tests.hs
@@ -51,13 +51,13 @@
 {-# ANN main ("HLint: ignore Eta reduce" :: String) #-}
 -- eta reducing qc breaks it
 
-instance (Arbitrary n, Fractional n, Real n) => Arbitrary (Time n) where
+instance (Fractional n) => Arbitrary (Time n) where
   arbitrary = fromRational <$> arbitrary
 
-instance (CoArbitrary n, Real n) => CoArbitrary (Time n) where
+instance (Real n) => CoArbitrary (Time n) where
   coarbitrary t = coarbitrary (toRational t)
 
-instance (Arbitrary n, Fractional n, Real n) => Arbitrary (Duration n) where
+instance (Fractional n) => Arbitrary (Duration n) where
   arbitrary = (fromRational . abs) <$> arbitrary
 
 instance Arbitrary a => Arbitrary (Dynamic a) where