diff --git a/.gitignore b/.gitignore
index e909e2d..eafacc7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@
 /dateutils-0.4.8.tar.xz
 /dateutils-0.4.9.tar.xz
 /dateutils-0.4.10.tar.xz
+/dateutils-0.4.11.tar.xz
diff --git a/dateutils.spec b/dateutils.spec
index 74910ad..7943d2d 100644
--- a/dateutils.spec
+++ b/dateutils.spec
@@ -1,5 +1,5 @@
 Name:           dateutils
-Version:        0.4.10
+Version:        0.4.11
 Release:        %autorelease
 Summary:        Command-line date and time calculation, conversion, and comparison
 
@@ -7,12 +7,6 @@ License:        BSD-3-Clause
 URL:            http://www.fresse.org/dateutils/
 Source0:        https://github.com/hroptatyr/dateutils/releases/download/v%{version}/%{name}-%{version}.tar.xz
 
-# https://github.com/hroptatyr/dateutils/issues/148
-# issue related to tzdata-2022g and change to Singapore timezone
-# This patch is from upstream. See:
-Patch0:         https://github.com/hroptatyr/dateutils/commit/841c635bf283e4b023bd98fbff9ebda1f340b024.patch
-Patch1:         https://github.com/hroptatyr/dateutils/commit/35041f4d9f06f94e4e408a3a12be237d4aa9ef44.patch
-
 BuildRequires:  gcc
 BuildRequires: make
 
diff --git a/sources b/sources
index faae3a3..915759a 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (dateutils-0.4.10.tar.xz) = 04a9fff177596bb9bc47d3b221865bbeafeafbc708385610845a1cdcb2a7fa379e8d9363cce578836ae121dab7ee64e19f61d82e8f222250e52d23c5f43cf521
+SHA512 (dateutils-0.4.11.tar.xz) = 601fa8197acdb68fe0688aed3fa2ba2fcf66b9a8ad23a0c7cb816a2cba9c645854ec8715a2127e02294cc068f63b09d0596eee60e151a8ad0edff22f54ec9d7a