diff --git a/qr-imager.cabal b/qr-imager.cabal
--- a/qr-imager.cabal
+++ b/qr-imager.cabal
@@ -1,5 +1,5 @@
 name:                qr-imager
-version:             1.0.1.5
+version:             1.0.1.6
 synopsis:            Library to generate QR codes from bytestrings and objects
 description:         Please see README.md
 homepage:            https://github.com/vmchale/QRImager#readme
@@ -21,7 +21,7 @@
                      , Data.QRCodes.Image
                      , Data.QRCodes.Signature
   other-modules:       Data.QRCodes.Utils
-  build-depends:       base >= 4.8 && < 5
+  build-depends:       base >= 4.9 && < 5
                      , aeson
                      , JuicyPixels
                      , vector
diff --git a/src/Data/QRCodes/Exe.hs b/src/Data/QRCodes/Exe.hs
--- a/src/Data/QRCodes/Exe.hs
+++ b/src/Data/QRCodes/Exe.hs
@@ -1,12 +1,12 @@
 -- | Parse options applicatively and read or write secure or non-secure QR codes.
 module Data.QRCodes.Exe where
 
-import Options.Applicative
-import Data.Aeson
-import qualified Data.ByteString as B
-import System.Environment (getArgs) --fix soon!
-import Data.QRCodes
-import Data.Monoid
+import           Data.Aeson
+import qualified Data.ByteString     as B
+import           Data.QRCodes
+import           Data.Semigroup
+import           Options.Applicative
+import           System.Environment  (getArgs)
 
 -- | Data type for the executable comprising the command, whether to sign, whether to verify it worked, and the output filename
 data Prog = Prog { cmd     :: Com
@@ -20,7 +20,7 @@
 -- | main exec function
 exec :: IO ()
 exec = execParser full >>= act
-    where 
+    where
         full = info (helper <*> program)
             ( fullDesc
             <> progDesc "Read/Write QR Codes with files"
@@ -42,9 +42,9 @@
 act (Prog Output False False filepath) = do
     pipeIn <- B.getContents
     byteStringToQR pipeIn filepath
-act (Prog Input True _ filepath) = 
+act (Prog Input True _ filepath) =
     (readQRStrSec filepath ".key.hk" :: IO String) >>= print
-act (Prog Input False _ filepath) = 
+act (Prog Input False _ filepath) =
     readQRString filepath >>= print
 
 -- | Parser for the command line