diff --git a/iCalendar.cabal b/iCalendar.cabal
--- a/iCalendar.cabal
+++ b/iCalendar.cabal
@@ -1,5 +1,5 @@
 name:                iCalendar
-version:             0.2
+version:             0.2.1
 synopsis:            iCalendar data types, parser, and printer.
 description:         Data definitions, parsing and printing of the iCalendar
                      format (RFC5545).
@@ -32,7 +32,7 @@
                      , Text.ICalendar.Parser.Properties
                      , Paths_iCalendar
   build-depends:       base ==4.*, time ==1.4.*, data-default >=0.3
-                     , case-insensitive ==0.4.*, network ==2.4.*
+                     , case-insensitive >=0.4, network ==2.4.*
                      , bytestring >=0.10 && < 0.11, parsec ==3.1.*
                      , text, containers >= 0.5 && < 0.6, mime ==0.3.*
                      , mtl ==2.1.*, old-locale, base64-bytestring ==1.0.*