diff --git a/Bio/PDB/IO/OpenAnyFile.hs b/Bio/PDB/IO/OpenAnyFile.hs
--- a/Bio/PDB/IO/OpenAnyFile.hs
+++ b/Bio/PDB/IO/OpenAnyFile.hs
@@ -53,6 +53,9 @@
 #if MIN_VERSION_zlib(0,5,4)
                                      Nothing
 #endif
+#if MIN_VERSION_zlib(0,6,1)
+                                     True
+#endif
   -- Upper bound: compression rate never exceeded 4.7 for big test files.
 
 --bzipParams c = BZip.DecompressParams BZip.DefaultMemoryLevel (fromIntegral (BS.length c * 7 + 4*1024*1024)) -- Upper bound: compression rate never exceeded 6.7 for big test files + 4MiB buffering.
diff --git a/changelog b/changelog
--- a/changelog
+++ b/changelog
@@ -1,7 +1,7 @@
 -*-Changelog-*-
 
-1.2.0.2  Dec 2014
-	* Works with GHC 7.10
+1.2.0.2  Apr 2015
+	* Update for zlib version 0.6.1.0.
 
 1.2.0.1  Dec 2014
 	* Relaxed upper bounds
diff --git a/hPDB.cabal b/hPDB.cabal
--- a/hPDB.cabal
+++ b/hPDB.cabal
@@ -1,5 +1,5 @@
 name:                hPDB
-version:             1.2.0.2
+version:             1.2.0.3
 synopsis:            Protein Databank file format library
 homepage:            https://github.com/BioHaskell/hPDB
 stability:           stable