diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,5 @@
+# Revision history for parallel-tree-search
+
+## 0.4.2 -- 2020-10-26
+
+* Depend on `tree-monad` 0.3.1
diff --git a/Control/Parallel/TreeSearch.hs b/Control/Parallel/TreeSearch.hs
--- a/Control/Parallel/TreeSearch.hs
+++ b/Control/Parallel/TreeSearch.hs
@@ -2,23 +2,25 @@
 -- Module      : Control.Parallel.TreeSearch
 -- Copyright   : Fabian Reck, Sebastian Fischer
 -- License     : PublicDomain
--- 
--- Maintainer  : Sebastian Fischer (sebf@informatik.uni-kiel.de)
+--
+-- Maintainer  : Niels Bunkenburg (nbu@informatik.uni-kiel.de)
 -- Stability   : experimental
 -- Portability : portable
--- 
+--
 -- This Haskell library provides an implementation of parallel search
 -- based on the search tree provided by the package tree-monad.
--- 
+--
 module Control.Parallel.TreeSearch ( parSearch ) where
 
-import Control.Monad.SearchTree
-import Control.Parallel
+import           Control.Monad.SearchTree
+import           Control.Parallel
 
 -- | Enumerate the leaves of a @SearchTree@ using parallel depth-first search.
 parSearch :: SearchTree a  -- ^ tree to search
           -> [a]           -- ^ lazy list of leaves
-parSearch None         = []
-parSearch (One x)      = [x]
+
+parSearch None = []
+parSearch (One x) = [x]
 parSearch (Choice l r) = rs `par` (parSearch l ++ rs)
- where rs = parSearch r
+ where
+  rs = parSearch r
diff --git a/parallel-tree-search.cabal b/parallel-tree-search.cabal
--- a/parallel-tree-search.cabal
+++ b/parallel-tree-search.cabal
@@ -1,29 +1,29 @@
-Name:          parallel-tree-search
-Version:       0.4.1
-Cabal-Version: >= 1.6
-Synopsis:      Parallel Tree Search
-Description:   
-
-  This Haskell library provides an implementation of parallel search
-  based on the search tree provided by the package tree-monad.
-
-Category:      Control, Concurrency
-License:       PublicDomain
-License-File:  LICENSE
-Author:        Fabian Reck, Sebastian Fischer
-Maintainer:    Sebastian Fischer
-Bug-Reports:   mailto:sebf@informatik.uni-kiel.de
-Homepage:      http://github.com/sebfisch/parallel-tree-search
-Build-Type:    Simple
-Stability:     experimental
+cabal-version:       >=1.10
 
-Extra-Source-Files: README
+name:                parallel-tree-search
+version:             0.4.2
+synopsis:            Parallel Tree Search
+description:         This Haskell library provides an implementation of parallel
+                     search based on the search tree provided by the package
+                     tree-monad.
+homepage:            https://github.com/nbun/parallel-tree-search
+bug-reports:         https://github.com/nbun/parallel-tree-search/issues
+license:             PublicDomain
+license-File:        LICENSE
+author:              Fabian Reck, Sebastian Fischer
+maintainer:          nbu@informatik.uni-kiel.de
+category:            Control, Concurrency
+build-Type:          Simple
+extra-Source-Files:  CHANGELOG.md, README
 
-Library
-  Build-Depends:    base, tree-monad, parallel
-  Exposed-Modules:  Control.Parallel.TreeSearch
-  Ghc-Options:      -Wall
+library
+  exposed-modules:     Control.Parallel.TreeSearch
+  build-depends:       base        >= 4.13.0 && < 4.15,
+                       parallel    >= 3.2.2 && < 3.3,
+                       tree-monad  >= 0.3.1 && < 0.4
+  default-language:    Haskell2010
+  ghc-options:         -Wall
 
-Source-Repository head
+source-repository head
   type:     git
-  location: git://github.com/sebfisch/parallel-tree-search.git
+  location: git://github.com/nbun/parallel-tree-search.git