diff --git a/mains/parseTest.hs b/mains/parseTest.hs
--- a/mains/parseTest.hs
+++ b/mains/parseTest.hs
@@ -1,6 +1,6 @@
 
 import System.Environment (getArgs)
-import Control.Applicative
+import Control.Applicative ((<$>))
 import Text.LDAP.Parser
 import qualified Data.ByteString.Lazy.Char8 as LB
 
diff --git a/src/Text/LDAP/Parser.hs b/src/Text/LDAP/Parser.hs
--- a/src/Text/LDAP/Parser.hs
+++ b/src/Text/LDAP/Parser.hs
@@ -1,7 +1,7 @@
 {-# LANGUAGE OverloadedStrings #-}
 -- |
 -- Module      : Text.LDAP.Parser
--- Copyright   : 2014 Kei Hibino
+-- Copyright   : 2014-2018 Kei Hibino
 -- License     : BSD3
 --
 -- Maintainer  : ex8k.hibino@gmail.com
@@ -36,7 +36,7 @@
 import qualified Data.Attoparsec.ByteString.Char8 as AP
 import qualified Data.Attoparsec.ByteString as APW
 import Data.Attoparsec.ByteString.Lazy (parse, eitherResult)
-import qualified Data.ByteString.Base64 as Base64
+import Data.ByteArray.Encoding (Base (Base64), convertFromBase)
 
 import Text.LDAP.Data
   (AttrType (..), AttrValue (..), Attribute, Component, DN, LdifAttrValue (..),
@@ -168,8 +168,10 @@
 base64String =  pack <$> many (satisfyW8 (`inBounds` base64Bounds))
 
 padDecodeB64 :: ByteString -> Either String ByteString
-padDecodeB64 s = Base64.decode (s <> pad)  where
+padDecodeB64 s = fromB64 (s <> pad)  where
   pad = BS8.replicate ((- BS8.length s) `mod` 4) '='
+  fromB64 "" = Right ""      -- avoid bug of older than memory-0.14.14
+  fromB64 bs  = convertFromBase Base64 bs
 
 eitherParser :: String -> Either String a -> LdapParser a
 eitherParser s = either (fail . ((s ++ ": ") ++)) pure
diff --git a/src/Text/LDAP/Printer.hs b/src/Text/LDAP/Printer.hs
--- a/src/Text/LDAP/Printer.hs
+++ b/src/Text/LDAP/Printer.hs
@@ -1,7 +1,7 @@
 {-# LANGUAGE OverloadedStrings #-}
 -- |
 -- Module      : Text.LDAP.Printer
--- Copyright   : 2014 Kei Hibino
+-- Copyright   : 2014-2018 Kei Hibino
 -- License     : BSD3
 --
 -- Maintainer  : ex8k.hibino@gmail.com
@@ -33,7 +33,7 @@
 import Control.Applicative (pure, (<*))
 import Control.Monad.Trans.Writer (Writer, tell, execWriter)
 import Text.Printf (printf)
-import qualified Data.ByteString.Base64 as Base64
+import Data.ByteArray.Encoding (Base (Base64), convertToBase)
 import Data.Attoparsec.ByteString (parseOnly, endOfInput)
 
 import Text.LDAP.Data
@@ -145,7 +145,7 @@
 ldifToSafeAttrValue (AttrValue s) = do
   case parseOnly (ldifSafeString <* endOfInput) $ s of
     Right _    ->  LAttrValRaw s
-    Left  _    ->  LAttrValBase64 $ Base64.encode s
+    Left  _    ->  LAttrValBase64 $ convertToBase Base64 s
 
 -- | Printer of LDIF attribute value with encode not safe string.
 --   Available printer combinator to pass 'ldifAttr' or 'openLdapEntry', etc ...
diff --git a/text-ldap.cabal b/text-ldap.cabal
--- a/text-ldap.cabal
+++ b/text-ldap.cabal
@@ -1,5 +1,5 @@
 name:                text-ldap
-version:             0.1.1.10
+version:             0.1.1.11
 synopsis:            Parser and Printer for LDAP text data stream
 description:         This package contains Parser and Printer for
                      LDAP text data stream like OpenLDAP backup LDIF.
@@ -7,7 +7,7 @@
 license-file:        LICENSE
 author:              Kei Hibino
 maintainer:          ex8k.hibino@gmail.com
-copyright:           Copyright (c) 2014-2017 Kei Hibino
+copyright:           Copyright (c) 2014-2018 Kei Hibino
 category:            Text
 build-type:          Simple
 cabal-version:       >=1.8
@@ -32,7 +32,7 @@
                        , transformers
                        , attoparsec
                        , dlist
-                       , base64-bytestring
+                       , memory
   if impl(ghc < 8)
     build-depends:       semigroups
 
@@ -49,14 +49,6 @@
   hs-source-dirs:      mains
   ghc-options:         -Wall -rtsopts
   -- ghc-prof-options:    -prof -fprof-auto
-
--- executable ppTest
---   main-is:             ppTest.hs
---   build-depends:         base <5
---                        , bytestring
---                        , text-ldap
---   hs-source-dirs:      mains
---   ghc-options:         -Wall -rtsopts
 
 Test-suite pp
   build-depends:         base <5