diff --git a/perl-DateTime.spec b/perl-DateTime.spec
index bd3520d..0a64d43 100644
--- a/perl-DateTime.spec
+++ b/perl-DateTime.spec
@@ -1,6 +1,6 @@
 Name:           perl-DateTime
 Epoch:          2
-Version:        1.41
+Version:        1.42
 Release:        1%{?dist}
 Summary:        Date and time object for Perl
 License:        Artistic 2.0
@@ -106,6 +106,12 @@ make test
 %{_mandir}/man3/DateTime::Types.3*
 
 %changelog
+* Mon Dec 26 2016 Paul Howarth <paul@city-fan.org> - 2:1.42-1
+- Update to 1.42
+  - The DateTime::Duration->add and ->subtract methods now accept
+    DateTime::Duration objects; this used to work by accident but is now done
+    intentionallay, with docs and tests (GH#50)
+
 * Thu Nov 17 2016 Paul Howarth <paul@city-fan.org> - 2:1.41-1
 - Update to 1.41
   - The DateTime->add and ->subtract methods now accept DateTime::Duration
diff --git a/sources b/sources
index 1872103..cab27e7 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-43d9ead8984097f970496d4dafef266e  DateTime-1.41.tar.gz
+SHA512 (DateTime-1.42.tar.gz) = 79471a7b2f1bed829e2e767ee1d9d9bddbb9cf68205d008ff70c1002dd402f9dbee98834431d5319e4b8dd22abda29df85c81a32905df18d1ab78f1d05753505