diff --git a/genvalidity-text.cabal b/genvalidity-text.cabal
--- a/genvalidity-text.cabal
+++ b/genvalidity-text.cabal
@@ -1,49 +1,60 @@
-name: genvalidity-text
-version: 0.4.0.0
-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: GenValidity support for Text
-description:
-    Please see README.md
-category: Testing
-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: 9b8a344767f2ad0220f4e49aff7aa135eac168cf40ec483f58a7ab67ddc61ab6
 
+name:           genvalidity-text
+version:        0.5.0.0
+synopsis:       GenValidity support for Text
+description:    Please see README.md
+category:       Testing
+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) 2016-2018 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.GenValidity.Text
-    build-depends:
-        base >=4.7 && <5,
-        validity >=0.4 && <0.5,
-        validity-text >=0.2 && <0.3,
-        genvalidity >=0.4 && <0.5,
-        text -any,
-        array -any,
-        QuickCheck -any
-    default-language: Haskell2010
-    hs-source-dirs: src
+  hs-source-dirs:
+      src
+  build-depends:
+      QuickCheck
+    , array
+    , base >=4.7 && <5
+    , genvalidity >=0.5 && <0.6
+    , text
+    , validity >=0.5 && <0.6
+    , validity-text >=0.3 && <0.4
+  exposed-modules:
+      Data.GenValidity.Text
+  other-modules:
+      Paths_genvalidity_text
+  default-language: Haskell2010
 
 test-suite genvalidity-text-test
-    type: exitcode-stdio-1.0
-    main-is: Spec.hs
-    build-depends:
-        base -any,
-        hspec -any,
-        QuickCheck -any,
-        genvalidity -any,
-        genvalidity-text -any,
-        genvalidity-hspec -any,
-        text -any
-    default-language: Haskell2010
-    hs-source-dirs: test
-    other-modules:
-        Data.GenValidity.TextSpec
-    ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall -fno-warn-name-shadowing
+  type: exitcode-stdio-1.0
+  main-is: Spec.hs
+  hs-source-dirs:
+      test
+  ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall -fno-warn-name-shadowing
+  build-depends:
+      QuickCheck
+    , base
+    , genvalidity
+    , genvalidity-hspec
+    , genvalidity-text
+    , hspec
+    , text
+  other-modules:
+      Data.GenValidity.TextSpec
+      Paths_genvalidity_text
+  default-language: Haskell2010
diff --git a/test/Data/GenValidity/TextSpec.hs b/test/Data/GenValidity/TextSpec.hs
--- a/test/Data/GenValidity/TextSpec.hs
+++ b/test/Data/GenValidity/TextSpec.hs
@@ -1,8 +1,11 @@
+{-# LANGUAGE TypeApplications #-}
+
 module Data.GenValidity.TextSpec
     ( spec
     ) where
 
 import Control.Monad
+import Data.Either
 import Data.List
 import Data.Word
 import Text.Printf
@@ -76,3 +79,7 @@
         forAll arbitrary $ \cs ->
             forAll (textWithoutAnyOf cs) $ \text ->
                 T.unpack text `shouldNotSatisfy` (\t -> any (`elem` t) cs)
+    describe "isValid" $
+        it "equals isRight . checkValidity" $
+        forAll (genUnchecked @Text) $ \t ->
+            isValid t `shouldBe` isRight (checkValidity t)