diff --git a/tzcode/PKGBUILD b/tzcode/PKGBUILD
index 174d82c1..f4aecf88 100644
--- a/tzcode/PKGBUILD
+++ b/tzcode/PKGBUILD
@@ -1,7 +1,7 @@
 # Maintainer: Alexey Pavlov <alexpux@gmail.com>
 
 pkgname=tzcode
-pkgver=2023c
+pkgver=2023d
 pkgrel=1
 pkgdesc="Sources for time zone and daylight saving time data"
 arch=('i686' 'x86_64')
@@ -15,11 +15,11 @@ source=(
         https://www.iana.org/time-zones/repository/releases/${pkgname}${pkgver}.tar.gz{,.asc}
         tzcode-makefile.patch
         tzcode-makefile-exe-extensions.patch)
-sha256sums=('3f510b5d1b4ae9bb38e485aa302a776b317fb3637bdb6404c4adf7b6cadd965c'
+sha256sums=('dbca21970b0a8b8c0ceceec1d7b91fa903be0f6eca5ae732b5329672232a08f3'
             'SKIP'
-            '46d17f2bb19ad73290f03a203006152e0fa0d7b11e5b71467c4a823811b214e7'
+            'e9a5f9e118886d2de92b62bb05510a28cc6c058d791c93bd6b84d3292c3c161e'
             'SKIP'
-            'a118e7b535bd21d494b9f3837a13939a0c826c0c6859dd8702a5256b898ad51a'
+            '19fbb941fa73ec1bc4f2caa24ac848e9fbf42ac187621bfef40f4a50d5198cdc'
             'faf73eb5f07c56b019b540005f4262f33927a4ff2acf3752a055e8530decd749')
 validpgpkeys=('7E3792A9D8ACF7D633BC1588ED97E90E62AA7E34') # Paul Eggert <eggert@cs.ucla.edu>
 msys2_references=(
diff --git a/tzcode/tzcode-makefile.patch b/tzcode/tzcode-makefile.patch
index 3c8c527d..07c5e2c9 100644
--- a/tzcode/tzcode-makefile.patch
+++ b/tzcode/tzcode-makefile.patch
@@ -18,15 +18,6 @@
  
  # Manual pages go in subdirectories of. . .
  MANDIR = $(TOPDIR)/$(USRSHAREDIR)/man
-@@ -370,7 +370,7 @@
- # January's first Monday when a "%V" format is used and January 1
- # falls on a Friday, Saturday, or Sunday.
- 
--CFLAGS=
-+CFLAGS+= -DHAVE_ADJTIME=0
- 
- # Linker flags.  Default to $(LFLAGS) for backwards compatibility
- # to release 2012h and earlier.
 @@ -403,7 +403,7 @@
  # Also, it is better (though not essential) if 'awk' supports UTF-8,
  # and unfortunately mawk and busybox awk do not support UTF-8.
@@ -36,12 +27,3 @@
  
  # The full path name of a Posix-compliant shell, preferably one that supports
  # the Korn shell's 'select' statement as an extension.
-@@ -482,7 +482,7 @@
- 
- #MAKE=		make
- 
--cc=		cc
-+cc=		gcc
- CC=		$(cc) -DTZDIR='"$(TZDIR)"'
- 
- AR=		ar