diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -1,3 +1,7 @@
+0.2.1.2
+-------
+* loosened dependency on data-default package
+
 0.2.1.1
 -------
 * fixed parsing shared string table entries with no content (thanks to Yuji Yamamoto <whosekiteneverfly@gmail.com>)
diff --git a/xlsx.cabal b/xlsx.cabal
--- a/xlsx.cabal
+++ b/xlsx.cabal
@@ -1,6 +1,6 @@
 Name:                xlsx
 
-Version:             0.2.1.1
+Version:             0.2.1.2
 
 Synopsis:            Simple and incomplete Excel file parser/writer
 Description:
@@ -62,7 +62,7 @@
                      , utf8-string  >= 0.3.7
                      , time         >= 1.4.0.1
                      , old-locale   >= 1.0.0.5
-                     , data-default == 0.5.*
+                     , data-default
                      , vector       >= 0.10
                      , mtl          >= 2.1
                      , binary-search
@@ -99,7 +99,7 @@
                      , utf8-string
                      , time
                      , old-locale
-                     , data-default == 0.5.*
+                     , data-default
                      , vector       >= 0.10
                      , binary-search
   Default-Language:     Haskell2010
