diff --git a/xmonad-wallpaper.cabal b/xmonad-wallpaper.cabal
--- a/xmonad-wallpaper.cabal
+++ b/xmonad-wallpaper.cabal
@@ -1,23 +1,23 @@
--- Initial xmonad-wallpaper.cabal generated by cabal init.  For further 
+-- Initial xmonad-wallpaper.cabal generated by cabal init.  For further
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 -- The name of the package.
 name:                xmonad-wallpaper
 
--- The package version.  See the Haskell package versioning policy (PVP) 
+-- The package version.  See the Haskell package versioning policy (PVP)
 -- for standards guiding when and how versions should be incremented.
 -- http://www.haskell.org/haskellwiki/Package_versioning_policy
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.0.1.4
+version:             0.0.1.5
 
 -- A short (one-line) description of the package.
-synopsis:            
+synopsis:
     xmonad wallpaper extension
 
 -- A longer description of the package.
-description:         
+description:
     Designed for xmonad users relies on feh to setup wallpaper. It allows user to setup a random image as the wallpaper choosed from user specified image directories.
 
 -- The license under which the package is released.
@@ -29,18 +29,18 @@
 -- The package author(s).
 author:              Ye Yan
 
--- An email address to which users can send suggestions, bug reports, and 
+-- An email address to which users can send suggestions, bug reports, and
 -- patches.
 maintainer:          haskell.ye.yan@gmail.com
 
 -- A copyright notice.
--- copyright:           
+-- copyright:
 
 category:            System
 
 build-type:          Simple
 
--- Extra files to be distributed with the package, such as examples or a 
+-- Extra files to be distributed with the package, such as examples or a
 -- README.
 extra-source-files:  README.md, changelog.md
 
@@ -51,19 +51,18 @@
 library
   -- Modules exported by the library.
   exposed-modules:     XMonad.Wallpaper, XMonad.Wallpaper.Find, XMonad.Wallpaper.Expand
-  
+
   -- Modules included in this library but not exported.
-  -- other-modules:       
-  
+  -- other-modules:
+
   -- LANGUAGE extensions used by modules in this package.
-  -- other-extensions:    
-  
+  -- other-extensions:
+
   -- Other library packages from which modules are imported.
-  build-depends:       base >=3.0 && <5.0, unix >=2.7 && <2.8, xmonad >=0.13 && <=0.13, mtl >=2.0 && <2.3, random >=1.1 && <1.2, magic >=1.1 && <1.2
-  
+  build-depends:       base >=3.0 && <5.0, unix, xmonad >=0.13 && <0.16, mtl, random, magic >=1.1 && <1.2
+
   -- Directories containing source files.
   hs-source-dirs:      src
-  
+
   -- Base language which the package is written in.
   default-language:    Haskell2010
-