diff --git a/profunctors.cabal b/profunctors.cabal
--- a/profunctors.cabal
+++ b/profunctors.cabal
@@ -1,6 +1,6 @@
 name:          profunctors
 category:      Control, Categories
-version:       3.3
+version:       3.3.0.1
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -27,9 +27,9 @@
 
 library
   build-depends:
-    base          == 4.*,
-    comonad       >= 3,
-    tagged        >= 0.4.4
+    base    == 4.*,
+    comonad >= 3     && < 4,
+    tagged  >= 0.4.4 && < 1
 
   exposed-modules:
     Data.Profunctor
diff --git a/src/Data/Profunctor.hs b/src/Data/Profunctor.hs
--- a/src/Data/Profunctor.hs
+++ b/src/Data/Profunctor.hs
@@ -4,8 +4,7 @@
 #endif
 -----------------------------------------------------------------------------
 -- |
--- Module      :  Data.Profunctor
--- Copyright   :  (C) 2011-2012 Edward Kmett,
+-- Copyright   :  (C) 2011-2013 Edward Kmett,
 -- License     :  BSD-style (see the file LICENSE)
 --
 -- Maintainer  :  Edward Kmett <ekmett@gmail.com>
diff --git a/src/Data/Profunctor/Unsafe.hs b/src/Data/Profunctor/Unsafe.hs
--- a/src/Data/Profunctor/Unsafe.hs
+++ b/src/Data/Profunctor/Unsafe.hs
@@ -4,8 +4,7 @@
 #endif
 -----------------------------------------------------------------------------
 -- |
--- Module      :  Data.Profunctor.Unsafe
--- Copyright   :  (C) 2011-2012 Edward Kmett,
+-- Copyright   :  (C) 2011-2013 Edward Kmett
 -- License     :  BSD-style (see the file LICENSE)
 --
 -- Maintainer  :  Edward Kmett <ekmett@gmail.com>
