diff --git a/Data/Data/GenRep/Doc.hs b/Data/Data/GenRep/Doc.hs
--- a/Data/Data/GenRep/Doc.hs
+++ b/Data/Data/GenRep/Doc.hs
@@ -2,6 +2,8 @@
 {-# LANGUAGE OverloadedStrings, PatternGuards #-}
 module Data.Data.GenRep.Doc
     ( Doc
+    , showLitCharInChar
+    , showLitCharInString
     , toDoc
     ) where
 
@@ -15,7 +17,7 @@
 ----------------
 
 -- |'IsString' instance for 'Doc'
-instance IsString Doc where fromString = text
+-- instance IsString Doc where fromString = text
 
 -------------------------
 
diff --git a/data-pprint.cabal b/data-pprint.cabal
--- a/data-pprint.cabal
+++ b/data-pprint.cabal
@@ -1,5 +1,5 @@
 name:                data-pprint
-version:             0.2
+version:             0.2.1.3
 category:            Testing, Text
 synopsis:            Prettyprint and compare Data values
 description:
@@ -64,10 +64,10 @@
     System.IO.Parallel
   other-modules:
   build-depends:
-    base >= 4.0 && < 4.4,
-    pretty >= 1.0 && < 1.1,
+    base >= 4.0 && < 4.6,
+    pretty >= 1.0 && < 1.2,
     mtl >= 2.0 && < 2.1,
-    deepseq >= 1.1 && < 1.2, 
-    time >= 1.2 && < 1.3,
-    parallel >= 3.1 && < 3.2
+    deepseq >= 1.1 && < 1.4,
+    time >= 1.2 && < 1.5,
+    parallel >= 3.1 && < 3.3