diff --git a/Data/Bitstream/Generic.hs b/Data/Bitstream/Generic.hs
--- a/Data/Bitstream/Generic.hs
+++ b/Data/Bitstream/Generic.hs
@@ -184,7 +184,7 @@
     basicPartition f α = (filter f α, filter ((¬) ∘ f) α)
 
     basicFromNBits ∷ (Integral n, Integral β, Bits β) ⇒ n → β → α
-    basicToBits    ∷ Bits β ⇒ α → β
+    basicToBits    ∷ (Integral β, Bits β) ⇒ α → β
 
 
 -- | /O(1)/ The empty 'Bitstream'.
@@ -307,7 +307,7 @@
 fromNBits = basicFromNBits
 
 -- | /O(n)/ Convert a 'Bitstream' into a 'Bits'.
-toBits ∷ (Bitstream α, Bits β) ⇒ α → β
+toBits ∷ (Bitstream α, Integral β, Bits β) ⇒ α → β
 {-# INLINE [0] toBits #-}
 toBits = basicToBits
 
diff --git a/Data/Bitstream/Internal.hs b/Data/Bitstream/Internal.hs
--- a/Data/Bitstream/Internal.hs
+++ b/Data/Bitstream/Internal.hs
@@ -96,7 +96,7 @@
           | otherwise
               = return Done
 
-lePacketsToBits ∷ (Monad m, Bits β) ⇒ Stream m (Packet Left) → m β
+lePacketsToBits ∷ (Monad m, Integral β, Bits β) ⇒ Stream m (Packet Left) → m β
 {-# INLINEABLE lePacketsToBits #-}
 lePacketsToBits (Stream step s0 _) = go (s0, 0, 0)
     where
@@ -111,7 +111,7 @@
                  Skip    s' → go (s', o, n)
                  Done       → return n
 
-bePacketsToBits ∷ (Monad m, Bits β) ⇒ Stream m (Packet Right) → m β
+bePacketsToBits ∷ (Monad m, Integral β, Bits β) ⇒ Stream m (Packet Right) → m β
 {-# INLINEABLE bePacketsToBits #-}
 bePacketsToBits (Stream step s0 _) = go (s0, 0)
     where
diff --git a/NEWS b/NEWS
--- a/NEWS
+++ b/NEWS
@@ -5,6 +5,11 @@
 #+OPTIONS: ^:nil
 #+TODO: UNRELEASED(u) | RELEASED(r)
 
+* RELEASED 0.2.0.3
+CLOSED: [2013-10-02 水 21:22]
+- Fix compilation on GHC 7.6 by adding (Integral α) for each (Bits
+  α), reported by Luca Molari.
+
 * RELEASED 0.2.0.2
 CLOSED: [2013-01-15 Tue 18:55]
 - Applied a patch by Jaap ter Woerds:
diff --git a/bitstream.cabal b/bitstream.cabal
--- a/bitstream.cabal
+++ b/bitstream.cabal
@@ -6,16 +6,16 @@
         fusion. This is like @bytestring@ but stores bits instead of
         bytes.
 
-Version: 0.2.0.2
+Version: 0.2.0.3
 License: PublicDomain
 License-File: COPYING
 Author: PHO <pho at cielonegro dot org>
 Maintainer: PHO <pho at cielonegro dot org>
 Stability: experimental
-Homepage: http://cielonegro.org/Bitstream.html
+Homepage: https://github.com/phonohawk/bitstream
 Bug-Reports: https://github.com/phonohawk/bitstream/issues
 Category: Data
-Tested-With: GHC == 7.4.1
+Tested-With: GHC == 7.6.2
 Cabal-Version: >= 1.10
 Build-Type: Simple
 Extra-Source-Files:
@@ -31,7 +31,7 @@
     Build-Depends:
         base                 == 4.*,
         base-unicode-symbols == 0.2.*,
-        bytestring           == 0.9.*,
+        bytestring           >= 0.9 && < 0.11,
         vector               == 0.10.*
 
     Exposed-Modules:
@@ -60,7 +60,7 @@
         QuickCheck           == 2.5.*,
         base                 == 4.*,
         base-unicode-symbols == 0.2.*,
-        bytestring           == 0.9.*,
+        bytestring           >= 0.9 && < 0.11,
         vector               == 0.10.*
     Default-Language: Haskell2010
     GHC-Options:
@@ -75,7 +75,7 @@
         QuickCheck           == 2.5.*,
         base                 == 4.*,
         base-unicode-symbols == 0.2.*,
-        bytestring           == 0.9.*,
+        bytestring           >= 0.9 && < 0.11,
         vector               == 0.10.*
     Default-Language: Haskell2010
     GHC-Options: