diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -14,19 +14,19 @@
 stack docker pull
 ```
 
-Then add 
+Then add
 
 ```
 packages:
 - .
 
 extra-deps:
-- aws-lambda-haskell-runtime-1.0.4
+- aws-lambda-haskell-runtime-1.0.7
 ```
 
 to your `stack.yaml`
 
-Then run 
+Then run
 
 ```
 make
@@ -47,7 +47,7 @@
 
 | us-east-2 | Other regions |
 |-----------|---------------|
-|    10     |       2       |
+|    13     |       5       |
 
 ## Full user guide
 
diff --git a/aws-lambda-haskell-runtime.cabal b/aws-lambda-haskell-runtime.cabal
--- a/aws-lambda-haskell-runtime.cabal
+++ b/aws-lambda-haskell-runtime.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 9cd5d02ae2c412f6bd71289bdfefdb72975fabb99e9fb6d271f3074e20ef3e9c
+-- hash: db217485e21b847a878e9019ef8632de870c19bec08c5699fe37503088fbf45a
 
 name:           aws-lambda-haskell-runtime
-version:        1.0.6
+version:        1.0.7
 synopsis:       Haskell runtime for AWS Lambda
 description:    Please see the README on GitHub at <https://github.com/theam/aws-lambda-haskell-runtime#readme>
 category:       AWS
diff --git a/src/Aws/Lambda/Runtime.hs b/src/Aws/Lambda/Runtime.hs
--- a/src/Aws/Lambda/Runtime.hs
+++ b/src/Aws/Lambda/Runtime.hs
@@ -15,6 +15,7 @@
 import Control.Monad
 import Data.Function ((&))
 import Data.Maybe (listToMaybe)
+import Data.Monoid ((<>))
 
 import qualified Data.CaseInsensitive as CI
 import Lens.Micro.Platform hiding ((.=))