diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Revision history for wai-handler-hal
 
+## 0.1.1.0 -- 2021-10-14
+
+* When API Gateway sends nonsense IPs during a test invocation, sub in
+  `127.0.0.1` instead of exploding.
+  [#3](https://github.com/bellroy/wai-handler-hal/issues/3)
+* Removed debug `print`s left in by mistake.
+
 ## 0.1.0.0 -- 2021-04-15
 
 * First version. Released on an unsuspecting world.
diff --git a/src/Network/Wai/Handler/Hal.hs b/src/Network/Wai/Handler/Hal.hs
--- a/src/Network/Wai/Handler/Hal.hs
+++ b/src/Network/Wai/Handler/Hal.hs
@@ -2,6 +2,7 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE TupleSections #-}
+{-# LANGUAGE TypeApplications #-}
 {-# OPTIONS_GHC -Wno-deprecations #-}
 
 -- |
@@ -44,6 +45,7 @@
   ( RequestContext (..),
   )
 import qualified AWS.Lambda.Events.ApiGateway.ProxyResponse as HalResponse
+import Control.Exception (IOException, tryJust)
 import Control.Monad.IO.Class (MonadIO (..))
 import Data.ByteString (ByteString)
 import qualified Data.ByteString as B
@@ -83,7 +85,14 @@
 import qualified Network.Socket as NS
 import qualified Network.Wai as Wai
 import qualified Network.Wai.Internal as Wai
-import System.IO (IOMode (..), SeekMode (..), hSeek, withFile)
+import System.IO
+  ( IOMode (..),
+    SeekMode (..),
+    hPutStrLn,
+    hSeek,
+    stderr,
+    withFile,
+  )
 
 -- | Convert a WAI 'Wai.Application' into a function that can
 -- be run by hal's 'AWS.Lambda.Runtime.mRuntime'. This is the simplest
@@ -175,9 +184,23 @@
           . HalRequest.sourceIp
           . HalRequest.identity
           $ HalRequest.requestContext req
-  print $ HalRequest.path req
-  print pathSegments
-  sourceAddr : _ <- NS.getAddrInfo (Just hints) (Just sourceIp) (Just $ show port)
+  -- Test invokes from the API Gateway console pass a "sourceIp" field
+  -- of "test-invoke-source-ip". If the getAddrInfo call fails, just
+  -- assume localhost.
+  sourceHost <-
+    tryJust
+      (Just @IOException)
+      (NS.getAddrInfo (Just hints) (Just sourceIp) (Just $ show port))
+      >>= \case
+        Right (s : _) -> pure $ NS.addrAddress s
+        _ -> do
+          hPutStrLn stderr $
+            mconcat
+              [ "Cannot convert sourceIp ",
+                show sourceIp,
+                " to address; assuming 127.0.0.1"
+              ]
+          pure . NS.SockAddrInet port $ NS.tupleToHostAddress (127, 0, 0, 1)
   body <- returnChunks $ HalRequest.body req
   let waiReq =
         Wai.Request
@@ -198,7 +221,7 @@
                 . H.toList
                 $ HalRequest.multiValueHeaders req,
             Wai.isSecure = True,
-            Wai.remoteHost = NS.addrAddress sourceAddr,
+            Wai.remoteHost = sourceHost,
             Wai.pathInfo = pathSegments,
             Wai.queryString = query,
             Wai.requestBody = body,
@@ -210,7 +233,6 @@
             Wai.requestHeaderReferer = getHeader hReferer req,
             Wai.requestHeaderUserAgent = getHeader hUserAgent req
           }
-  print waiReq
   pure waiReq
 
 -- | Unpack a lazy 'BL.ByteString' into its chunks, and return an IO
diff --git a/wai-handler-hal.cabal b/wai-handler-hal.cabal
--- a/wai-handler-hal.cabal
+++ b/wai-handler-hal.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.2
 name:               wai-handler-hal
-version:            0.1.0.0
+version:            0.1.1.0
 synopsis:           Wrap WAI applications to run on AWS Lambda
 description:
   This library provides a function 'Network.Wai.Handler.Hal.run' to
@@ -21,9 +21,7 @@
 copyright:          Copyright (C) 2021 Bellroy Pty Ltd
 category:           AWS, Cloud
 build-type:         Simple
-extra-source-files:
-  CHANGELOG.md
-
+extra-source-files: CHANGELOG.md
 tested-with:        GHC ==8.6.5 || ==8.8.4 || ==8.10.4
 
 common opts
@@ -37,17 +35,17 @@
 
 common deps
   build-depends:
-    , base                  >=4.12    && <4.15
-    , base64-bytestring     ^>=1.1.0.0
-    , bytestring            ^>=0.10.8
-    , case-insensitive      ^>=1.2.1.0
+    , base                  >=4.12     && <4.16
+    , base64-bytestring     >=1.0.0.0  && <1.3
+    , bytestring            >=0.10.8   && <0.12
+    , case-insensitive      ^>=1.2.0.0
     , hal                   ^>=0.4.7
     , http-types            ^>=0.12.3
-    , network               ^>=3.1.1.1
+    , network               >=2.8.0.0  && <3.2
     , text                  ^>=1.2.3
-    , unordered-containers  ^>=0.2.13
-    , vault                 ^>=0.3.1.5
-    , wai                   ^>=3.2.3
+    , unordered-containers  ^>=0.2.10.0
+    , vault                 ^>=0.3.1.0
+    , wai                   ^>=3.2.2
 
 library
   import:          opts, deps