diff --git a/megaparsec-tests/megaparsec-tests.cabal b/megaparsec-tests/megaparsec-tests.cabal
index 93b00e84..9089ac88 100644
--- a/megaparsec-tests/megaparsec-tests.cabal
+++ b/megaparsec-tests/megaparsec-tests.cabal
@@ -24,7 +24,7 @@ library
     hs-source-dirs:   src
     default-language: Haskell2010
     build-depends:
-        QuickCheck >=2.10 && <2.18,
+        QuickCheck >=2.17 && <2.18,
         base >=4.15 && <5,
         bytestring >=0.2 && <0.13,
         containers >=0.5 && <0.9,
@@ -63,7 +63,7 @@ test-suite tests
 
     default-language:   Haskell2010
     build-depends:
-        QuickCheck >=2.10 && <2.18,
+        QuickCheck >=2.17 && <2.18,
         base >=4.15 && <5,
         bytestring >=0.2 && <0.13,
         case-insensitive >=1.2 && <1.3,
diff --git a/megaparsec-tests/src/Test/Hspec/Megaparsec/AdHoc.hs b/megaparsec-tests/src/Test/Hspec/Megaparsec/AdHoc.hs
index 0221998e..660902a7 100644
--- a/megaparsec-tests/src/Test/Hspec/Megaparsec/AdHoc.hs
+++ b/megaparsec-tests/src/Test/Hspec/Megaparsec/AdHoc.hs
@@ -344,6 +344,3 @@ instance Arbitrary B.ByteString where
 
 instance Arbitrary BL.ByteString where
   arbitrary = BL.pack <$> arbitrary
-
-instance (Arbitrary a) => Arbitrary (NonEmpty a) where
-  arbitrary = NE.fromList <$> (arbitrary `suchThat` (not . null))