diff --git a/icu.spec b/icu.spec
index da215f3..9648db9 100644
--- a/icu.spec
+++ b/icu.spec
@@ -5,7 +5,7 @@ Summary:   International Components for Unicode
 Group:     Development/Tools
 License:   MIT
 URL:       http://www.icu-project.org/
-Source0:   http://download.icu-project.org/files/icu4c/4.2.0.1/icu4c-4_2_0_1-src.tgz
+Source0:   http://download.icu-project.org/files/icu4c/4.2.1/icu4c-4_2_1-src.tgz
 Source1:   icu-config
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires: doxygen, autoconf