diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Revision history for waargonaut
 
+## 0.8.0.1  -- 2019-09-22
+
+* Support GHC 8.8.1
+
+* Support generics-sop 0.5
+
 ## 0.8.0.0  -- 2019-09-04
 
 * Add `onObj'` which is just `onObj` but specialised to `Identity`.
@@ -19,7 +25,7 @@
 * Change the building of escaped whitespace chars to actually use the
   `escapedWhitespaceChar` function, instead of incorrectly generating an unescaped
   character.
- 
+
 * Add haddock to gObjEncoder function
 
 * Correctly bump version to 0.8.0.0 as this is a breaking change because of new
diff --git a/src/Waargonaut/Generic.hs b/src/Waargonaut/Generic.hs
--- a/src/Waargonaut/Generic.hs
+++ b/src/Waargonaut/Generic.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP                   #-}
 {-# LANGUAGE DataKinds             #-}
 {-# LANGUAGE DefaultSignatures     #-}
 {-# LANGUAGE FlexibleContexts      #-}
@@ -263,10 +264,10 @@
   -- @
   -- newtype Foo = Foo Text
   --
-  -- let x = Foo "Fred"
+  -- let x = Foo \"Fred\"
   -- @
   --
-  -- Will be encoded as: @ "Fred" @
+  -- Will be encoded as: @ \"Fred\" @
   --
   = Unwrap
 
@@ -275,10 +276,10 @@
   -- @
   -- newtype Foo = Foo Text
   --
-  -- let x = Foo "Fred"
+  -- let x = Foo \"Fred\"
   -- @
   --
-  -- Will be encoded as: @ {"Foo":"Fred"} @
+  -- Will be encoded as: @ {\"Foo\":\"Fred\"} @
   --
   | ConstructorNameAsKey
 
@@ -288,10 +289,10 @@
   -- @
   -- newtype Foo = Foo { deFoo :: Text }
   --
-  -- let x = Foo "Fred"
+  -- let x = Foo \"Fred\"
   -- @
   --
-  -- Will be encoded as: @ {"deFoo":"Fred"} @
+  -- Will be encoded as: @ {\"deFoo\":\"Fred\"} @
   | FieldNameAsKey
   deriving (Show, Eq)
 
@@ -483,7 +484,12 @@
       ConstructorNameAsKey -> JsonOne (Tag $ _optionsFieldName opts n) :* Nil
       FieldNameAsKey       -> jInfoFor opts n (Tag . _optionsFieldName opts) c :* Nil
 
-    ADT _ n cs -> hliftA (jInfoFor opts n (tag cs)) cs
+#if MIN_VERSION_generics_sop(0,5,0)
+    ADT _ n cs _
+#else
+    ADT _ n cs
+#endif
+      -> hliftA (jInfoFor opts n (tag cs)) cs
   where
     tag :: NP ConstructorInfo (Code a) -> ConstructorName -> Tag
     tag (_ :* Nil) = const NoTag
diff --git a/waargonaut.cabal b/waargonaut.cabal
--- a/waargonaut.cabal
+++ b/waargonaut.cabal
@@ -10,7 +10,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.8.0.0
+version:             0.8.0.1
 
 -- A short (one-line) description of the package.
 synopsis:            JSON wrangling
@@ -75,7 +75,8 @@
 tested-with:         GHC==8.0.2
                    , GHC==8.2.2
                    , GHC==8.4.4
-                   , GHC==8.6.4
+                   , GHC==8.6.5
+                   , GHC==8.8.1
 
 custom-setup
   setup-depends:       base >= 4.9 && <5
@@ -143,8 +144,8 @@
   ghc-options:         -Wall
 
   -- Other library packages from which modules are imported.
-  build-depends:       base                    >= 4.9     && < 4.13
-                     , lens                    >= 4.15    && < 4.18
+  build-depends:       base                    >= 4.9     && < 4.14
+                     , lens                    >= 4.15    && < 4.19
                      , mtl                     >= 2.2.2   && < 2.3
                      , text                    >= 1.2     && < 1.3
                      , bytestring              >= 0.10.6  && < 0.11
@@ -160,7 +161,7 @@
                      , hoist-error             >= 0.2     && < 0.3
                      , containers              >= 0.5.6   && < 0.7
                      , witherable              >= 0.2     && < 0.4
-                     , generics-sop            >= 0.4     && < 0.5
+                     , generics-sop            >= 0.4     && < 0.6
                      , records-sop             >= 0.1     && < 0.2
                      , mmorph                  >= 1.1     && < 1.2
                      , transformers            >= 0.4     && < 0.6
@@ -190,7 +191,7 @@
   default-language:    Haskell2010
   hs-source-dirs:      test
 
-  build-depends:       base             >= 4.9  && < 4.13
+  build-depends:       base             >= 4.9  && < 4.14
                      , hedgehog         >= 0.6  && < 1.2
                      , text             >= 1.2  && < 1.3
                      , digit            >= 0.7  && < 0.9
@@ -229,14 +230,14 @@
   main-is:             Main.hs
   hs-source-dirs:      test
 
-  build-depends:       base                    >= 4.9    && < 4.13
+  build-depends:       base                    >= 4.9    && < 4.14
                      , tasty                   >= 0.11   && < 1.3
                      , tasty-hunit             >= 0.10   && < 0.11
                      , tasty-expected-failure  >= 0.11   && < 0.12
                      , hedgehog                >= 0.6    && < 1.2
                      , hedgehog-fn             >= 0.6    && < 2
                      , tasty-hedgehog          >= 0.2    && < 1.2
-                     , lens                    >= 4.15   && < 4.18
+                     , lens                    >= 4.15   && < 4.19
                      , distributive            >= 0.5    && < 0.7
                      , bytestring              >= 0.10.6 && < 0.11
                      , digit                   >= 0.7    && < 0.9
@@ -244,7 +245,7 @@
                      , semigroups              >= 0.8.4  && < 0.20
                      , zippers                 >= 0.2    && < 0.4
                      , vector                  >= 0.12   && < 0.13
-                     , generics-sop            >= 0.4    && < 0.5
+                     , generics-sop            >= 0.4    && < 0.6
                      , attoparsec              >= 0.13   && < 0.15
                      , scientific              >= 0.3    && < 0.4
                      , tagged                  >= 0.8.5  && < 0.9