diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -29,10 +29,24 @@
 
 ## Table of Contents
 
+  - [Supported Platforms / GHC Versions](#supported-platforms-ghc-versions)
   - [Quick Start](#quick-start)
   - [Usage](#usage)
   - [Local Testing](#local-testing)
 
+## Supported Platforms / GHC Versions
+
+We currently support this library under the same environment that [AWS Lambda
+supports][lambda-env].
+
+Our [CI] currently targets the latest three [LTS Stackage Versions][stackage],
+the latest three minor versions of [GHC] under [Cabal]
+(e.g. `8.6.x`, `8.4.x`, and `8.2.x`), and GHC-head / Stackage nightly builds.
+
+If you haven't already, adding `docker: { enable: true }` to your `stack.yaml`
+file will ensure that you're building a binary that can run in
+[AWS Lambda][lambda-env].
+
 ## Quick Start
 
 This quick start assumes you have the following tools installed:
@@ -168,3 +182,8 @@
 [CloudFormation]: https://aws.amazon.com/cloudformation/
 [aws-sam-cli]: https://github.com/awslabs/aws-sam-cli
 [Rust Runtime]: https://github.com/awslabs/aws-lambda-rust-runtime
+[lambda-env]: https://docs.aws.amazon.com/lambda/latest/dg/current-supported-versions.html
+[ci]: https://travis-ci.org/Nike-Inc/hal
+[stackage]: https://www.stackage.org/
+[GHC]: https://www.haskell.org/ghc/download.html
+[Cabal]: https://www.haskell.org/cabal/download.html
diff --git a/hal.cabal b/hal.cabal
--- a/hal.cabal
+++ b/hal.cabal
@@ -1,13 +1,13 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.31.1.
+-- This file has been generated from package.yaml by hpack version 0.33.0.
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 1408c613441045c809d9a7ee2bbf3b5ec3b31e015cde8e8339da5a1d14df1c1f
+-- hash: 2c7baad228ce0a3a9be1e930b2b3f15f122b84118367a2a1efeadb22c7cbe530
 
 name:           hal
-version:        0.1.2
+version:        0.1.4
 synopsis:       A runtime environment for Haskell applications running on AWS Lambda.
 description:    This library uniquely supports different types of AWS Lambda Handlers for your
                 needs/comfort with advanced Haskell. Instead of exposing a single function
@@ -38,7 +38,7 @@
       Paths_hal
   hs-source-dirs:
       src
-  default-extensions: OverloadedStrings BangPatterns DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveLift DeriveTraversable DerivingStrategies EmptyCase GeneralizedNewtypeDeriving InstanceSigs LambdaCase MultiParamTypeClasses MultiWayIf OverloadedStrings PatternSynonyms ScopedTypeVariables
+  default-extensions: OverloadedStrings BangPatterns DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveLift DeriveTraversable EmptyCase GeneralizedNewtypeDeriving InstanceSigs LambdaCase MultiParamTypeClasses MultiWayIf OverloadedStrings PatternSynonyms ScopedTypeVariables
   ghc-options: -Wall -Wcompat -Wincomplete-record-updates -Wincomplete-uni-patterns -Wredundant-constraints -fno-warn-partial-type-signatures -fno-warn-name-shadowing -fwarn-tabs -fwarn-unused-imports -fwarn-missing-signatures -fwarn-incomplete-patterns
   build-depends:
       aeson
diff --git a/src/AWS/Lambda/RuntimeClient.hs b/src/AWS/Lambda/RuntimeClient.hs
--- a/src/AWS/Lambda/RuntimeClient.hs
+++ b/src/AWS/Lambda/RuntimeClient.hs
@@ -31,7 +31,7 @@
                                             setRequestCheckStatus,
                                             setRequestHeader, setRequestMethod,
                                             setRequestPath)
-import           Network.HTTP.Types.Status (status413, statusIsSuccessful)
+import           Network.HTTP.Types.Status (status403, status413, statusIsSuccessful)
 import           System.Environment        (getEnv)
 
 -- | Lambda runtime error that we pass back to AWS
@@ -110,9 +110,16 @@
 runtimeClientRetryTry' 1 f = try f
 runtimeClientRetryTry' i f = do
   resOrEx <- try f
+  let retry = threadDelay 500 >> runtimeClientRetryTry' (i - 1) f
   case resOrEx of
-    Left (_ :: HttpException) -> threadDelay 500 >> runtimeClientRetryTry' (i - 1) f
-    Right res -> return $ Right res
+    Left (_ :: HttpException) -> retry
+    Right res ->
+      -- TODO: Explore this further.
+      -- Before ~July 22nd 2020 it seemed that if a next event request reached
+      -- the runtime before a new event was available that there would be a
+      -- network error.  After it appears that a 403 is returned.
+      if getResponseStatus res == status403 then retry
+      else return $ Right res
 
 runtimeClientRetryTry :: IO (Response a) -> IO (Either HttpException (Response a))
 runtimeClientRetryTry = runtimeClientRetryTry' 3