diff --git a/CD/AccurateRip.hs b/CD/AccurateRip.hs
--- a/CD/AccurateRip.hs
+++ b/CD/AccurateRip.hs
@@ -160,12 +160,12 @@
 
 discId2 :: [Int] -> DiscID
 discId2 xs = DiscID $ toEnum $ sum $ zipWith (*) (1:xs) [1..n+1]
-	where n = length xs
+    where n = length xs
 
 
 arUrl :: [Int] -> String
 arUrl xs = "http://www.accuraterip.com/accuraterip/" ++
-      	   (show (discId1 xs)!!7) : '/' :
+           (show (discId1 xs)!!7) : '/' :
            (show (discId1 xs)!!6) : '/' :
            (show (discId1 xs)!!5) : "/dBAR-" ++
            addZeros 3 (show (length xs)) ++
@@ -174,8 +174,8 @@
            '-' : show (cddbDiscId xs) ++
            ".bin"
     where addZeros n s = if length s >= n
-	       		 then s
-			 else addZeros n ('0':s)
+                         then s
+                         else addZeros n ('0':s)
 
 {-
 crcFromTo :: Int -> Int -> [Sample] -> CRC
diff --git a/CD/CDDB.hs b/CD/CDDB.hs
--- a/CD/CDDB.hs
+++ b/CD/CDDB.hs
@@ -40,6 +40,6 @@
                         255
                        ) 24
     where sumDigits 0 = 0
-	  sumDigits n = let (q,r) = quotRem n 10
+          sumDigits n = let (q,r) = quotRem n 10
                         in r + sumDigits q
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+Version 0.3.4 (2015-04-06)
+--------------------------
+
+- Allow dependency on `deepseq` 1.4.
+
 Version 0.3.3 (2014-10-10)
 --------------------------
 
diff --git a/Main.hs b/Main.hs
--- a/Main.hs
+++ b/Main.hs
@@ -22,7 +22,7 @@
 intro :: String
 intro = progName ++ " " ++ showVersion version ++
         "\n\
-        \Copyright (C) 2012-2014 Nicola Squartini.\n\
+        \Copyright (C) 2012-2015 Nicola Squartini.\n\
         \License GPLv3+: GNU GPL version 3 or \
         \later <http://gnu.org/licenses/gpl.html>\n\
         \This is free software: you are free to change and redistribute it.\n\
diff --git a/flaccuraterip.cabal b/flaccuraterip.cabal
--- a/flaccuraterip.cabal
+++ b/flaccuraterip.cabal
@@ -1,10 +1,10 @@
 Name:           flaccuraterip
-Version:        0.3.3
+Version:        0.3.4
 Cabal-Version:  >= 1.10
 Build-Type:     Simple
 License:        GPL-3
 License-File:   LICENSE
-Copyright:      © 2012-2014 Nicola Squartini
+Copyright:      © 2012-2015 Nicola Squartini
 Author:         Nicola Squartini
 Maintainer:     Nicola Squartini <tensor5@gmail.com>
 Homepage:       http://noaxiom.org/flAccurateRip
@@ -40,13 +40,13 @@
 Source-Repository this
   Type:      git
   Location:  git://github.com/tensor5/flAccurateRip.git
-  Tag:       v0.3.1
+  Tag:       v0.3.4
 
 Executable flaccuraterip
   Default-Language:  Haskell2010
   Build-Depends:     base                  == 4.*,
                      binary                >= 0.5 && < 0.8,
-                     deepseq               == 1.3.*,
+                     deepseq               >= 1.3 && < 1.5,
                      HTTP                  == 4000.2.*,
                      optparse-applicative  >= 0.10 && < 0.12,
                      process               == 1.2.*