diff --git a/.gitignore b/.gitignore
index cac2186..8b3e0fb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 SOURCES/javazic-1.8-37392f2f5d59.tar.xz
 SOURCES/javazic.tar.gz
-SOURCES/tzcode2023c.tar.gz
-SOURCES/tzdata2023c.tar.gz
+SOURCES/tzcode2024a.tar.gz
+SOURCES/tzdata2024a.tar.gz
diff --git a/.tzdata.metadata b/.tzdata.metadata
index 616e1c2..b4c6e03 100644
--- a/.tzdata.metadata
+++ b/.tzdata.metadata
@@ -1,4 +1,4 @@
 77292e1839952807567570118e01405b405af80c SOURCES/javazic-1.8-37392f2f5d59.tar.xz
 ee8ad215161cd132e65e2be447b279457158b540 SOURCES/javazic.tar.gz
-89c79224f532827836671ed9b5941a1496514cc1 SOURCES/tzcode2023c.tar.gz
-c81ef1c556143917f73f989c4b6e9f006e2fbe16 SOURCES/tzdata2023c.tar.gz
+96c682391618d0f053d70ccb98cd65d969d014cd SOURCES/tzcode2024a.tar.gz
+310a281e4551e4e9a11db4f9ceea85a6529af4af SOURCES/tzdata2024a.tar.gz
diff --git a/SOURCES/0002-Fix-have-snprintf.patch b/SOURCES/0002-Fix-have-snprintf.patch
index 3f6b930..b3dab7f 100644
--- a/SOURCES/0002-Fix-have-snprintf.patch
+++ b/SOURCES/0002-Fix-have-snprintf.patch
@@ -1,13 +1,12 @@
 diff -Nrup a/Makefile b/Makefile
---- a/Makefile	2018-10-04 14:49:24.000000000 -0400
-+++ b/Makefile	2018-10-18 16:23:33.675393451 -0400
-@@ -343,7 +343,7 @@ GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fn
- # January's first Monday when a "%V" format is used and January 1
- # falls on a Friday, Saturday, or Sunday.
+--- a/Makefile	2024-01-01 17:57:30.112884304 -0500
++++ b/Makefile	2024-01-01 17:59:33.641497622 -0500
+@@ -423,6 +423,7 @@ GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fn
+ # Uncomment the following line and edit its contents as needed.
  
--CFLAGS=
+ #CFLAGS= -O 1
 +CFLAGS= -DHAVE_SNPRINTF=1
  
- # Linker flags.  Default to $(LFLAGS) for backwards compatibility
- # to release 2012h and earlier.
-Binary files a/tzdata2018f-rearguard.tar.gz and b/tzdata2018f-rearguard.tar.gz differ
+ 
+ # The name of a POSIX-like library archiver, its flags, C compiler,
+Binary files a/tzdata2023d-rearguard.tar.gz and b/tzdata2023d-rearguard.tar.gz differ
diff --git a/SPECS/tzdata.spec b/SPECS/tzdata.spec
index f59d207..ad5c023 100644
--- a/SPECS/tzdata.spec
+++ b/SPECS/tzdata.spec
@@ -1,8 +1,8 @@
 Summary: Timezone data
 Name: tzdata
-Version: 2023c
-%define tzdata_version 2023c
-%define tzcode_version 2023c
+Version: 2024a
+%define tzdata_version 2024a
+%define tzcode_version 2024a
 Release: 1%{?dist}
 License: Public Domain
 Group: System Environment/Base
@@ -150,6 +150,22 @@ rm -rf $RPM_BUILD_ROOT
 %{_datadir}/javazi-1.8
 
 %changelog
+* Thu Feb 01 2024 Patsy Griffin <patsy@redhat.com> - 2024a-1
+- Rebase to tzdata-2024a
+  - Kazakhstan will transition from UTC+6 to UTC+5 on 2024-03-01.
+  - Palestine will spring forward a week later than previously
+    predicted.
+
+* Mon Jan 01 2024 Patsy Griffin <patsy@redhat.com> - 2023d-1
+- Rebase to tzdata-2023d
+  - Include time zone changes for Ittoqqortoormiit, Greenland
+    and Vostok, Antarctica.
+  - Update the expiration date for the leap-seconds.list file.
+    No new leap seconds were added.
+
+* Tue Aug 22 2023 Patsy Griffin <patsy@redhat.com> - 2023c-2
+- Bump release to test recent process changes. (RHEL-1328)
+
 * Tue Mar 28 2023 Patsy Griffin <patsy@redhat.com> - 2023c-1
 - Rebase to tzdata-2023c
   - Lebanon reversed the change added in tzdata-2023b.