diff --git a/35041f4d.patch b/35041f4d.patch
new file mode 100644
index 0000000..ae51653
--- /dev/null
+++ b/35041f4d.patch
@@ -0,0 +1,24 @@
+From 35041f4d9f06f94e4e408a3a12be237d4aa9ef44 Mon Sep 17 00:00:00 2001
+From: Sebastian Freundt <freundt@ga-group.nl>
+Date: Mon, 12 Dec 2022 08:01:42 +0000
+Subject: [PATCH] test, revert, do not use Singapore for testing previous
+ transitions
+
+---
+ test/dzone.008.ctst | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/test/dzone.008.ctst b/test/dzone.008.ctst
+index 758401b5..c8c9daa9 100644
+--- a/test/dzone.008.ctst
++++ b/test/dzone.008.ctst
+@@ -1,7 +1,7 @@
+ #!/usr/bin/clitosis  ## -*- shell-script -*-
+ 
+-$ dzone --prev Asia/Singapore 2014-02-22
+-1981-12-31T23:30:00+07:30 <- 1982-01-01T00:00:00+08:00	Asia/Singapore
++$ dzone --prev Asia/Jakarta
++1964-01-01T00:00:00+07:30 <- 1963-12-31T23:30:00+07:00	Asia/Jakarta
+ $
+ 
+ ## dzone.008.ctst ends here
diff --git a/841c635b.patch b/841c635b.patch
new file mode 100644
index 0000000..89ad92a
--- /dev/null
+++ b/841c635b.patch
@@ -0,0 +1,25 @@
+From 841c635bf283e4b023bd98fbff9ebda1f340b024 Mon Sep 17 00:00:00 2001
+From: Sebastian Freundt <freundt@ga-group.nl>
+Date: Mon, 12 Dec 2022 07:53:31 +0000
+Subject: [PATCH] test, follow tzdata's research on past transitions, fixes
+ issue #148
+
+Singapore's 1981-12-31 change was at 16:00 UTC (23:30 local time),
+not 24:00 local time.  (Thanks to Geoff Clare via Robert Elz)
+---
+ test/dzone.008.ctst | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/test/dzone.008.ctst b/test/dzone.008.ctst
+index 94d8017e..758401b5 100644
+--- a/test/dzone.008.ctst
++++ b/test/dzone.008.ctst
+@@ -1,7 +1,7 @@
+ #!/usr/bin/clitosis  ## -*- shell-script -*-
+ 
+ $ dzone --prev Asia/Singapore 2014-02-22
+-1982-01-01T00:00:00+07:30 <- 1982-01-01T00:30:00+08:00	Asia/Singapore
++1981-12-31T23:30:00+07:30 <- 1982-01-01T00:00:00+08:00	Asia/Singapore
+ $
+ 
+ ## dzone.008.ctst ends here
diff --git a/dateutils.changes b/dateutils.changes
index 25a0542..7ca22be 100644
--- a/dateutils.changes
+++ b/dateutils.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Mon Dec 19 13:45:39 UTC 2022 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add upstream patches 35041f4d.patch and 841c635b.patch: Do not
+  use Singapore for testing previous transitions, but rather
+  Jakarta. Fixes build with timezone 2022g.
+
 -------------------------------------------------------------------
 Fri May 27 09:45:49 UTC 2022 - Michael Vetter <mvetter@suse.com>
 
diff --git a/dateutils.spec b/dateutils.spec
index c730e72..9321ffe 100644
--- a/dateutils.spec
+++ b/dateutils.spec
@@ -26,6 +26,8 @@ URL:            https://github.com/hroptatyr/dateutils/
 Source0:        https://github.com/hroptatyr/dateutils/releases/download/v%{version}/%{name}-%{version}.tar.xz
 Source1:        https://github.com/hroptatyr/dateutils/releases/download/v%{version}/%{name}-%{version}.tar.asc
 Source2:        %{name}.keyring
+Patch0:         https://github.com/hroptatyr/dateutils/commit/841c635b.patch
+Patch1:         https://github.com/hroptatyr/dateutils/commit/35041f4d.patch
 BuildRequires:  octave-devel
 BuildRequires:  pkgconfig
 BuildRequires:  timezone