diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -22,7 +22,9 @@
   stack new mypackage
   ```
 
-  LTS 9 and 10 are supported, older versions are likely to work too but untested.
+  LTS 9, 10 and 11 are supported, older versions are likely to work too but
+  untested. For LTS 11, add the Amazonka 1.6.0 dependency manually - see
+  [stack.yaml](stack.yaml#L9-L12).
 
 * Initialise a Serverless project inside the Stack package directory and install
   the `serverless-haskell` plugin:
@@ -112,6 +114,8 @@
 * Run `./integration-test/run.sh`. The exit code indicates success.
 * To verify just the packaging, without deployment, run
   `./integration-test/run.sh --dry-run`.
+* By default, the integration test is run with LTS 11. To specify a different
+series, use `RESOLVER_SERIES=lts-9`.
 
 ## Releasing
 
diff --git a/serverless-haskell.cabal b/serverless-haskell.cabal
--- a/serverless-haskell.cabal
+++ b/serverless-haskell.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: dd2b5566a666fb6304386c170bc456dfed8ad8faffc46cb6336a6dc2789fe58c
+-- hash: 8f7a5edd86f688ac89a16b18015891d3d1ef2dd96525bb7f22231c96791b2183
 
 name:           serverless-haskell
-version:        0.5.1
+version:        0.5.2
 synopsis:       Deploying Haskell code onto AWS Lambda using Serverless
 description:    Utilities to help process the events from AWS Lambda when deployed with the serverless-haskell plugin.
 category:       AWS, Cloud, Network
diff --git a/src/AWSLambda/Orphans.hs b/src/AWSLambda/Orphans.hs
--- a/src/AWSLambda/Orphans.hs
+++ b/src/AWSLambda/Orphans.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP                        #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE OverloadedStrings          #-}
 {-# LANGUAGE StandaloneDeriving         #-}
@@ -10,7 +11,9 @@
 import           Network.AWS.Data.Text (fromText)
 import qualified Network.AWS.S3        as S3
 
+#if !MIN_VERSION_amazonka_core(1,6,0)
 deriving instance FromJSON S3.BucketName
+#endif
 
 deriving instance FromJSON S3.ObjectKey