diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for sensu-run
 
+## 0.5.0.1 -- 2018-04-30
+
+* Relax upper version bound for network and fix a warning
+
 ## 0.5.0 -- 2018-04-20
 
 * Add support for HTTPS (#18)
diff --git a/sensu-run.cabal b/sensu-run.cabal
--- a/sensu-run.cabal
+++ b/sensu-run.cabal
@@ -1,5 +1,5 @@
 name: sensu-run
-version: 0.5.0
+version: 0.5.0.1
 synopsis: A tool to send command execution results to Sensu
 description:
   @sensu-run@ is a command line tool to send command execution results to Sensu
@@ -34,7 +34,7 @@
     , http-client-tls < 0.4
     , http-types >= 0.9.1 && < 0.13
     , lens >= 4.15 && < 4.17
-    , network >= 2.2.3 && < 2.7
+    , network >= 2.2.3 && < 2.8
     , optparse-applicative >= 0.12 && < 0.15
     , process >= 1.4 && < 1.7
     , temporary >= 1.1 && < 1.4
diff --git a/sensu-run.hs b/sensu-run.hs
--- a/sensu-run.hs
+++ b/sensu-run.hs
@@ -123,16 +123,23 @@
   -> BL8.ByteString -- ^ Payload
   -> IO ()
 sendToClientSocketInput port payload = bracket open close $ \sock -> do
-  localhost <- inet_addr "127.0.0.1"
-  connect sock $ SockAddrInet port localhost
-  Socket.sendAll sock payload
-  `catch` \(ioe :: IOException) -> do
-    hPutStrLn stderr $
-      "Failed to write results to localhost:" ++ show port
-        ++ " (" ++ show ioe ++ ")"
-    exitFailure
+  info <- getAddrInfo (Just hints) (Just "127.0.0.1") (Just $ show port)
+  case info of
+    [] -> ioError $ userError "sendToClientSocketInput: failed to get AddrInfo"
+    localhost:_ -> do
+      connect sock $ addrAddress localhost
+      Socket.sendAll sock payload
+      `catch` \(ioe :: IOException) -> do
+        hPutStrLn stderr $
+          "Failed to write results to localhost:" ++ show port
+            ++ " (" ++ show ioe ++ ")"
+        exitFailure
   where
     open = socket AF_INET Stream defaultProtocol
+    hints = defaultHints
+      { addrFamily = AF_INET
+      , addrSocketType = Stream
+      }
 
 sendToSensuServer
   :: NonEmpty String -- ^ Sensu server base URLs