diff --git a/genvalidity-hspec-aeson.cabal b/genvalidity-hspec-aeson.cabal
--- a/genvalidity-hspec-aeson.cabal
+++ b/genvalidity-hspec-aeson.cabal
@@ -1,11 +1,13 @@
--- This file has been generated from package.yaml by hpack version 0.28.2.
+cabal-version: 1.12
+
+-- This file has been generated from package.yaml by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 79fdb11b75841614035caa689270b1989403f7c94567911a63cc144f08dce236
+-- hash: aeb4e3b40ca11d74303e78ef210d2c3c930011bf6277fe2f9758e0efad65980f
 
 name:           genvalidity-hspec-aeson
-version:        0.3.0.1
+version:        0.3.1.0
 synopsis:       Standard spec's for aeson-related instances
 description:    Standard spec's for aeson-related Instances
 category:       Testing
@@ -14,11 +16,10 @@
 author:         Tom Sydney Kerckhove
 maintainer:     syd.kerckhove@gmail.com,
                 nick.van.den.broeck666@gmail.com
-copyright:      Copyright: (c) 2016-2018 Tom Sydney Kerckhove
+copyright:      Copyright: (c) 2016-2019 Tom Sydney Kerckhove
 license:        MIT
 license-file:   LICENSE
 build-type:     Simple
-cabal-version:  >= 1.10
 
 source-repository head
   type: git
diff --git a/test/Test/Validity/AesonSpec.hs b/test/Test/Validity/AesonSpec.hs
--- a/test/Test/Validity/AesonSpec.hs
+++ b/test/Test/Validity/AesonSpec.hs
@@ -32,9 +32,9 @@
 
 instance Validity ForShow
 
-instance GenUnchecked ForShow
-
-instance GenValid ForShow
+instance GenValid ForShow where
+    genValid = genValidStructurally
+    shrinkValid = shrinkValidStructurally
 
 instance FromJSON ForShow