diff --git a/sources b/sources
index a900467..42597cb 100644
--- a/sources
+++ b/sources
@@ -1,4 +1,4 @@
 6a3392cd5f1594d13c12c1a836ac8d91  javazic.tar.gz
 e36d2f742c22f8c8dbf0686ac9769b55  tzdata-base-0.tar.bz2
-91355f66ab9bffe3d450357ff7a1189a  tzdata2009u.tar.gz
-17fe1e12237b11d490f62dcec4b4bc11  tzcode2009t.tar.gz
+6af9fdb979b868be9080da64d53c9be9  tzdata2010c.tar.gz
+a3021ce84b46bf57627dade2451949b6  tzcode2010c.tar.gz
diff --git a/tzdata.spec b/tzdata.spec
index 74c722f..e01aae9 100644
--- a/tzdata.spec
+++ b/tzdata.spec
@@ -1,8 +1,8 @@
 Summary: Timezone data
 Name: tzdata
-Version: 2009u
-%define tzdata_version 2009u
-%define tzcode_version 2009t
+Version: 2010c
+%define tzdata_version 2010c
+%define tzcode_version 2010c
 Release: 1%{?dist}
 License: Public Domain
 Group: System Environment/Base
@@ -111,6 +111,16 @@ rm -rf %{buildroot}
 %{_datadir}/javazi
 
 %changelog
+* Mon Mar 01 2010 Petr Machata <pmachata@redhat.com> - 2010c-1
+- Upstream 2010a
+  - Source code cleanups
+- Upstream 2010b
+  - Northern Mexico's border cities share the DST schedule with the
+    United States
+- Upstream 2010c
+  - Paraguay DST now in effect from 2nd Sunday of April to 1st Sunday
+    of October
+
 * Mon Jan 04 2010 Petr Machata <pmachata@redhat.com> - 2009u-1
 - Upstream 2009p
   - Argentina does not enter DST on October 18