diff --git a/src/Network/AWS/Wolf/Act.hs b/src/Network/AWS/Wolf/Act.hs
--- a/src/Network/AWS/Wolf/Act.hs
+++ b/src/Network/AWS/Wolf/Act.hs
@@ -21,7 +21,7 @@
 -- | S3 copy call.
 --
 cp :: MonadIO m => FilePath -> FilePath -> m ()
-cp f t = liftIO $ callProcess "aws" [ "s3", "cp", "--recursive", f, t ]
+cp f t = liftIO $ callProcess "aws" [ "s3", "cp", "--quiet", "--recursive", f, t ]
 
 -- | Key to download and upload objects from.
 --
diff --git a/src/Network/AWS/Wolf/Prelude.hs b/src/Network/AWS/Wolf/Prelude.hs
--- a/src/Network/AWS/Wolf/Prelude.hs
+++ b/src/Network/AWS/Wolf/Prelude.hs
@@ -7,20 +7,13 @@
 module Network.AWS.Wolf.Prelude
   ( module Exports
   , runConcurrent
-  , stripPrefix'
   ) where
 
 import Control.Concurrent.Async.Lifted
 import Control.Monad.Trans.Control
-import Data.Text                       hiding (map)
-import Preamble                        as Exports hiding (stripPrefix)
+import Preamble                        as Exports
 
 -- | Run a list of actions concurrently.
 --
 runConcurrent :: MonadBaseControl IO m => [m a] -> m ()
 runConcurrent = void . runConcurrently . sequenceA . map Concurrently
-
--- | Strip the prefix with a '/' tacked on to the prefix.
---
-stripPrefix' :: Text -> Text -> Maybe Text
-stripPrefix' prefix = stripPrefix (prefix -/- mempty)
diff --git a/wolf.cabal b/wolf.cabal
--- a/wolf.cabal
+++ b/wolf.cabal
@@ -1,5 +1,5 @@
 name:                  wolf
-version:               0.3.15
+version:               0.3.16
 synopsis:              Amazon Simple Workflow Service Wrapper.
 description:           Wolf is a wrapper around Amazon Simple Workflow Service.
 homepage:              https://github.com/swift-nav/wolf
@@ -34,13 +34,10 @@
   ghc-options:         -Wall
   build-depends:       aeson
                      , amazonka
-                     , amazonka-core
                      , amazonka-swf
                      , base == 4.8.*
                      , bytestring
                      , conduit
-                     , conduit-combinators
-                     , conduit-extra
                      , directory
                      , exceptions
                      , filemanip
@@ -48,11 +45,9 @@
                      , http-types
                      , lifted-async
                      , monad-control
-                     , optparse-applicative
                      , preamble
                      , process
                      , resourcet
-                     , text
                      , time
                      , uuid
                      , yaml