diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
 # 0.1.0.0
 
 Initial version.
+
+# 0.1.0.1
+
+* Updated tests to use `Wrapped Num` rather than `StockLit`.
+* Fixed an unused identifier warning when building on older GHCs.
diff --git a/dependent-literals-plugin.cabal b/dependent-literals-plugin.cabal
--- a/dependent-literals-plugin.cabal
+++ b/dependent-literals-plugin.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: acdf4e8362e54c7dabc311e213378ec098339936e11995a39c08d189594f7ece
+-- hash: 36ec8ae7ecaa56006786e7772271804225d27b9ef511f8a251b9b16812e4ca82
 
 name:           dependent-literals-plugin
-version:        0.1.0.0
+version:        0.1.0.1
 synopsis:       Rewrites integer literals to a pseudo-dependently-typed form.
 description:    This plugin implements pseudo-dependently-typed integer literals.
                 .
@@ -79,13 +79,14 @@
   ghc-options: -fplugin=DependentLiterals.Plugin
   build-depends:
       base >=4.12 && <4.16
-    , dependent-literals >=0.1 && <0.2
+    , dependent-literals >=0.1.1 && <0.2
     , dependent-literals-plugin
     , fin-int >=0.1 && <0.2
     , numeric-kinds >=0.1 && <0.2
     , short-vec >=0.1 && <0.2
     , sint >=0.1 && <0.2
     , snumber >=0.1 && <0.2
+    , wrapped >=0.1 && <0.2
   if !flag(error_message_tests)
     buildable: False
   default-language: Haskell2010
@@ -101,13 +102,14 @@
   ghc-options: -fplugin=DependentLiterals.Plugin
   build-depends:
       base >=4.12 && <4.16
-    , dependent-literals >=0.1 && <0.2
+    , dependent-literals >=0.1.1 && <0.2
     , dependent-literals-plugin
     , fin-int >=0.1 && <0.2
     , numeric-kinds >=0.1 && <0.2
     , short-vec >=0.1 && <0.2
     , sint >=0.1 && <0.2
     , snumber >=0.1 && <0.2
+    , wrapped >=0.1 && <0.2
   if !flag(error_message_tests)
     buildable: False
   default-language: Haskell2010
@@ -139,13 +141,14 @@
   ghc-options: -fplugin=DependentLiterals.Plugin
   build-depends:
       base >=4.12 && <4.16
-    , dependent-literals >=0.1 && <0.2
+    , dependent-literals >=0.1.1 && <0.2
     , dependent-literals-plugin
     , fin-int >=0.1 && <0.2
     , numeric-kinds >=0.1 && <0.2
     , short-vec >=0.1 && <0.2
     , sint >=0.1 && <0.2
     , snumber >=0.1 && <0.2
+    , wrapped >=0.1 && <0.2
   default-language: Haskell2010
 
 test-suite PolyErrors-test
@@ -159,13 +162,14 @@
   ghc-options: -fplugin=DependentLiterals.Plugin
   build-depends:
       base >=4.12 && <4.16
-    , dependent-literals >=0.1 && <0.2
+    , dependent-literals >=0.1.1 && <0.2
     , dependent-literals-plugin
     , fin-int >=0.1 && <0.2
     , numeric-kinds >=0.1 && <0.2
     , short-vec >=0.1 && <0.2
     , sint >=0.1 && <0.2
     , snumber >=0.1 && <0.2
+    , wrapped >=0.1 && <0.2
   if !flag(error_message_tests)
     buildable: False
   default-language: Haskell2010
@@ -181,13 +185,14 @@
   ghc-options: -fplugin=DependentLiterals.Plugin
   build-depends:
       base >=4.12 && <4.16
-    , dependent-literals >=0.1 && <0.2
+    , dependent-literals >=0.1.1 && <0.2
     , dependent-literals-plugin
     , fin-int >=0.1 && <0.2
     , numeric-kinds >=0.1 && <0.2
     , short-vec >=0.1 && <0.2
     , sint >=0.1 && <0.2
     , snumber >=0.1 && <0.2
+    , wrapped >=0.1 && <0.2
   if !flag(error_message_tests)
     buildable: False
   default-language: Haskell2010
@@ -203,13 +208,14 @@
   ghc-options: -fplugin=DependentLiterals.Plugin
   build-depends:
       base >=4.12 && <4.16
-    , dependent-literals >=0.1 && <0.2
+    , dependent-literals >=0.1.1 && <0.2
     , dependent-literals-plugin
     , fin-int >=0.1 && <0.2
     , numeric-kinds >=0.1 && <0.2
     , short-vec >=0.1 && <0.2
     , sint >=0.1 && <0.2
     , snumber >=0.1 && <0.2
+    , wrapped >=0.1 && <0.2
   if !flag(error_message_tests)
     buildable: False
   default-language: Haskell2010
@@ -225,13 +231,14 @@
   ghc-options: -fplugin=DependentLiterals.Plugin
   build-depends:
       base >=4.12 && <4.16
-    , dependent-literals >=0.1 && <0.2
+    , dependent-literals >=0.1.1 && <0.2
     , dependent-literals-plugin
     , fin-int >=0.1 && <0.2
     , numeric-kinds >=0.1 && <0.2
     , short-vec >=0.1 && <0.2
     , sint >=0.1 && <0.2
     , snumber >=0.1 && <0.2
+    , wrapped >=0.1 && <0.2
   if !flag(error_message_tests)
     buildable: False
   default-language: Haskell2010
diff --git a/src/DependentLiterals/Plugin.hs b/src/DependentLiterals/Plugin.hs
--- a/src/DependentLiterals/Plugin.hs
+++ b/src/DependentLiterals/Plugin.hs
@@ -158,7 +158,7 @@
 -- Pre-8.10 compatibility shims.
 #if !MIN_VERSION_ghc(8,10,0)
 type NoExtField = NoExt
-pattern NoExtField :: NoExt
+pattern NoExtField :: NoExtField
 pattern NoExtField = NoExt
 
 type ImportDeclQualifiedStyle = Bool
diff --git a/tests/Deriving.hs b/tests/Deriving.hs
--- a/tests/Deriving.hs
+++ b/tests/Deriving.hs
@@ -22,14 +22,15 @@
 
 import Data.Int (Int8)
 import Data.SNumber (SNumber)
-import DependentLiterals (HasIntLiterals, StockLit(..))
+import Data.Wrapped (Wrapped(..))
+import DependentLiterals (HasIntLiterals)
 import GHC.TypeNats (type (*))
 import Kinds.Integer (Integer(..))
 import Data.Fin.Int (Fin)
 
 newtype MyType = MyType Int
 #if !defined(__HLINT__)
-  deriving HasIntLiterals via StockLit Int
+  deriving HasIntLiterals via Wrapped Num Int
 #endif
 
 x0 :: MyType
@@ -70,3 +71,12 @@
 
 x6 :: MyInt8
 x6 = -7
+
+newtype MyType5 = MyType5 Int
+#if !defined(__HLINT__)
+  deriving (Eq, Num)
+  deriving HasIntLiterals via Wrapped Num MyType5
+#endif
+
+x7 :: MyType5
+x7 = 0