diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,3 @@
+#### 0.1.1.1
+
+* Allow `attoparsec == 0.12.*`
diff --git a/README.md b/README.md
new file mode 100644
--- /dev/null
+++ b/README.md
@@ -0,0 +1,1 @@
+[![Build Status](https://travis-ci.org/silkapp/attoparsec-expr.svg?branch=master)](https://travis-ci.org/silkapp/attoparsec-expr)
diff --git a/attoparsec-expr.cabal b/attoparsec-expr.cabal
--- a/attoparsec-expr.cabal
+++ b/attoparsec-expr.cabal
@@ -1,26 +1,28 @@
-Name:             attoparsec-expr
-Version:          0.1.1
-Description:      Port of parsec's expression parser to attoparsec.
-Synopsis:         Port of parsec's expression parser to attoparsec.
-Category:         Text, Parsing
-License:          BSD3
-License-file:     LICENSE
-Author:           Daan Leijen, Paolo Martini
-Maintainer:       Silk <code@silk.co>
-Build-Type:       Simple
-Cabal-Version:    >= 1.6
-
-Library
-  GHC-Options:      -Wall
-  HS-Source-Dirs:   src
-
-  Build-Depends:
-      base       == 4.*
-    , attoparsec >= 0.10 && < 0.12
+name:                attoparsec-expr
+version:             0.1.1.1
+description:         Port of parsec's expression parser to attoparsec.
+synopsis:            Port of parsec's expression parser to attoparsec.
+category:            Text, Parsing
+license:             BSD3
+license-file:        LICENSE
+author:              Daan Leijen, Paolo Martini
+maintainer:          Silk <code@silk.co>
+build-type:          Simple
+cabal-version:       >= 1.6
 
-  Exposed-modules:  Data.Attoparsec.Expr
+extra-source-files:
+  CHANGELOG.md
+  LICENSE
+  README.md
 
-Source-repository head
-  type:     git
-  location: https://github.com/silkapp/attoparsec-expr
+source-repository head
+  type:              git
+  location:          https://github.com/silkapp/attoparsec-expr
 
+library
+  ghc-options:       -Wall
+  hs-source-dirs:    src
+  exposed-modules:   Data.Attoparsec.Expr
+  Build-Depends:
+      base == 4.*
+    , attoparsec >= 0.10 && < 0.13