diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -4,11 +4,13 @@
 Haskell interface to [Naver Translate][1].  Note that Naver Translate doesn't
 provide any official API.
 
+    > :set -XOverloadedStrings
     > import Language.Translate.Naver (translate)
-    > import Language.LanguageCodes (ISO639_1(JA, KO))
+    > import Data.LanguageCodes (ISO639_1(JA, KO))
+    > import Data.Text (unpack)
     > result <- translate KO JA "안녕하세요."
-    > result
-    "こんにちは"
+    > putStrLn (unpack result)
+    こんにちは
 
 Written by [Hong Minhee][2] and distributed under [GPLv3][3] or higher.
 See also LICENSE file.
diff --git a/naver-translate.cabal b/naver-translate.cabal
--- a/naver-translate.cabal
+++ b/naver-translate.cabal
@@ -1,5 +1,5 @@
 name:                naver-translate
-version:             0.1.0.1
+version:             0.1.0.2
 synopsis:            Interface to Naver Translate
 homepage:            https://github.com/dahlia/naver-translate
 bug-reports:         https://github.com/dahlia/naver-translate/issues
@@ -15,14 +15,14 @@
 
 library
   exposed-modules:     Language.Translate.Naver
-  build-depends:       aeson        >=0.7.0.6  && <0.8.0.0,
-                       base         >=4.7 && <4.8,
+  build-depends:       aeson        >=0.7.0.6  && <0.9.0.0,
+                       base         >=4.7 && <4.9,
                        iso639,
-                       lens         >=4.8 && <4.9,
+                       lens         >=4.8 && <4.13,
                        lens-aeson   >=1.0.0.3  && <1.1.0.0,
                        network-uri  >=2.6.0.0  && <3.0.0.0,
-                       text         >=1.1.0.0  && <1.2.0.0,
-                       wreq         >=0.3.0.1  && <0.4.0.0,
+                       text         >=1.1.0.0  && <1.2.2.0,
+                       wreq         >=0.3.0.1  && <0.5.0.0,
                        random       >=1.0.1.1  && <1.1.0.0
   hs-source-dirs:      src
   default-language:    Haskell2010
diff --git a/src/Language/Translate/Naver.hs b/src/Language/Translate/Naver.hs
--- a/src/Language/Translate/Naver.hs
+++ b/src/Language/Translate/Naver.hs
@@ -10,7 +10,7 @@
 import Data.Aeson.Types (Value(String))
 import Data.LanguageCodes (ISO639_1(JA, KO), language)
 import Data.Text (Text, cons, intercalate, pack, snoc, splitOn, strip)
-import Network.URI (URI(URI), URIAuth(URIAuth), relativeTo, uriIsAbsolute)
+import Network.URI (URI(URI), URIAuth(URIAuth), relativeTo)
 import Network.Wreq (FormParam((:=)), post, responseBody)
 import System.Random (getStdRandom, randomR)