diff --git a/src/Data/Validity/Text.hs b/src/Data/Validity/Text.hs
--- a/src/Data/Validity/Text.hs
+++ b/src/Data/Validity/Text.hs
@@ -37,10 +37,10 @@
             ]
     validate t@(Text arr off len) =
         mconcat
-            [ len >= 0 <?!> "The length is positive."
-            , off >= 0 <?!> "The offset is positive."
+            [ len >= 0 <?@> "The length is positive."
+            , off >= 0 <?@> "The offset is positive."
             , (let c = A.unsafeIndex arr off
-               in len == 0 || c < 0xDC00 || c > 0xDFFF) <?!>
+               in len == 0 || c < 0xDC00 || c > 0xDFFF) <?@>
               "The offset character is valid UTF16."
                  -- It contains a valid UTF16
             , ((== (Right t :: Either E.UnicodeException Text)) $
@@ -49,6 +49,6 @@
                evaluate .
                E.decodeUtf16LEWith E.strictDecode .
                LB.toStrict . SBB.toLazyByteString . mconcat . map SBB.word16LE $
-               A.toList arr off len) <?!>
+               A.toList arr off len) <?@>
               "The bytes can correctly be decoded as UTF16."
             ]
diff --git a/validity-text.cabal b/validity-text.cabal
--- a/validity-text.cabal
+++ b/validity-text.cabal
@@ -1,30 +1,38 @@
-name: validity-text
-version: 0.2.0.0
-cabal-version: >=1.10
-build-type: Simple
-license: MIT
-license-file: LICENSE
-copyright: Copyright: (c) 2016 Tom Sydney Kerckhove
-maintainer: syd.kerckhove@gmail.com
-homepage: https://github.com/NorfairKing/validity#readme
-synopsis: Validity instances for text
-description:
-    Please see README.md
-category: Web
-author: Tom Sydney Kerckhove
+-- This file has been generated from package.yaml by hpack version 0.20.0.
+--
+-- see: https://github.com/sol/hpack
+--
+-- hash: 66d567970429991c7e4fb8b53812a651f3021bf8947373e7ed3f41d45334976a
 
+name:           validity-text
+version:        0.2.0.1
+synopsis:       Validity instances for text
+description:    Please see README.md
+category:       Web
+homepage:       https://github.com/NorfairKing/validity#readme
+bug-reports:    https://github.com/NorfairKing/validity/issues
+author:         Tom Sydney Kerckhove
+maintainer:     syd.kerckhove@gmail.com
+copyright:      Copyright: (c) 2016 Tom Sydney Kerckhove
+license:        MIT
+license-file:   LICENSE
+build-type:     Simple
+cabal-version:  >= 1.10
+
 source-repository head
-    type: git
-    location: https://github.com/NorfairKing/validity
+  type: git
+  location: https://github.com/NorfairKing/validity
 
 library
-    exposed-modules:
-        Data.Validity.Text
-    build-depends:
-        base >=4.7 && <5,
-        validity >=0.4 && <0.5,
-        text -any,
-        bytestring -any
-    default-language: Haskell2010
-    hs-source-dirs: src
-
+  hs-source-dirs:
+      src
+  build-depends:
+      base >=4.7 && <5
+    , bytestring
+    , text
+    , validity >=0.4 && <0.5
+  exposed-modules:
+      Data.Validity.Text
+  other-modules:
+      Paths_validity_text
+  default-language: Haskell2010