diff --git a/Data/Attoparsec/Text.hs b/Data/Attoparsec/Text.hs
--- a/Data/Attoparsec/Text.hs
+++ b/Data/Attoparsec/Text.hs
@@ -11,6 +11,7 @@
 -- loosely based on the Parsec library.
 
 module Data.Attoparsec.Text
+    {-# DEPRECATED "Use version 0.10 or newer of the attoparsec package instead" #-}
     (
     -- * Differences from Parsec
     -- $parsec
diff --git a/Data/Attoparsec/Text/FastSet.hs b/Data/Attoparsec/Text/FastSet.hs
--- a/Data/Attoparsec/Text/FastSet.hs
+++ b/Data/Attoparsec/Text/FastSet.hs
@@ -14,6 +14,7 @@
 --
 -----------------------------------------------------------------------------
 module Data.Attoparsec.Text.FastSet
+    {-# DEPRECATED "Use version 0.10 or newer of the attoparsec package instead" #-}
     (
     -- * Data type
       FastSet
diff --git a/Data/Attoparsec/Text/Lazy.hs b/Data/Attoparsec/Text/Lazy.hs
--- a/Data/Attoparsec/Text/Lazy.hs
+++ b/Data/Attoparsec/Text/Lazy.hs
@@ -22,6 +22,7 @@
 -- 'T.Text' parameters.
 
 module Data.Attoparsec.Text.Lazy
+    {-# DEPRECATED "Use version 0.10 or newer of the attoparsec package instead" #-}
     (
       Result(..)
     , module Data.Attoparsec.Text
diff --git a/attoparsec-text.cabal b/attoparsec-text.cabal
--- a/attoparsec-text.cabal
+++ b/attoparsec-text.cabal
@@ -1,5 +1,5 @@
 name:            attoparsec-text
-version:         0.8.5.1
+version:         0.8.5.2
 license:         BSD3
 license-file:    LICENSE
 category:        Text, Parsing