diff --git a/.gitignore b/.gitignore
index 2878d82..3370f83 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 SOURCES/javazic-1.8-37392f2f5d59.tar.xz
 SOURCES/javazic.tar.gz
-SOURCES/tzcode2025c.tar.gz
-SOURCES/tzdata2025c.tar.gz
+SOURCES/tzcode2026a.tar.gz
+SOURCES/tzdata2026a.tar.gz
diff --git a/.tzdata.metadata b/.tzdata.metadata
index d8111e1..03cbd68 100644
--- a/.tzdata.metadata
+++ b/.tzdata.metadata
@@ -1,4 +1,4 @@
 77292e1839952807567570118e01405b405af80c SOURCES/javazic-1.8-37392f2f5d59.tar.xz
 ee8ad215161cd132e65e2be447b279457158b540 SOURCES/javazic.tar.gz
-ab010dd023e0899106eb8edea97794cf4bfbea24 SOURCES/tzcode2025c.tar.gz
-1a51542a6f0b3916fb0e89300dd589f68df30e17 SOURCES/tzdata2025c.tar.gz
+3cf52dac7ffbbfbfbd49146e5f2ee250ee75ac01 SOURCES/tzcode2026a.tar.gz
+20e130588f579cdafb8c09fcbfa1fe62275b590a SOURCES/tzdata2026a.tar.gz
diff --git a/SOURCES/0003-continue-to-ship-posixrules.patch b/SOURCES/0003-continue-to-ship-posixrules.patch
deleted file mode 100644
index fa905d3..0000000
--- a/SOURCES/0003-continue-to-ship-posixrules.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff -Nrup a/Makefile b/Makefile
---- a/Makefile	2023-03-22 17:41:49.069789592 -0400
-+++ b/Makefile	2023-03-22 17:44:07.528427093 -0400
-@@ -52,7 +52,7 @@ LOCALTIME=	Factory
- #	make zonenames
- # to get a list of the values you can use for POSIXRULES.
- 
--POSIXRULES=	-
-+POSIXRULES=	America/New_York
- 
- # Also see TZDEFRULESTRING below, which takes effect only
- # if POSIXRULES is '-' or if the template file cannot be accessed.
-Binary files a/tzdata2023a-rearguard.tar.gz and b/tzdata2023a-rearguard.tar.gz differ
diff --git a/SPECS/tzdata.spec b/SPECS/tzdata.spec
index 8a4a1c1..8457a64 100644
--- a/SPECS/tzdata.spec
+++ b/SPECS/tzdata.spec
@@ -1,8 +1,8 @@
 Summary: Timezone data
 Name: tzdata
-Version: 2025c
-%define tzdata_version 2025c
-%define tzcode_version 2025c
+Version: 2026a
+%define tzdata_version 2026a
+%define tzcode_version 2026a
 Release: 1%{?dist}
 License: Public Domain
 URL: https://www.iana.org/time-zones
@@ -10,9 +10,6 @@ Source0: ftp://ftp.iana.org/tz/releases/tzdata%{tzdata_version}.tar.gz
 Source1: ftp://ftp.iana.org/tz/releases/tzcode%{tzcode_version}.tar.gz
 
 Patch002: 0002-Fix-have-snprintf.patch
-%if 0%{?rhel} || 0%{?eln}
-Patch003: 0003-continue-to-ship-posixrules.patch
-%endif
 
 BuildRequires: make
 BuildRequires: gcc
@@ -46,9 +43,6 @@ This package contains timezone information for use by Java runtimes.
 %setup -q -c -a 1
 
 %patch002 -p1
-%if 0%{?rhel} || 0%{?eln}
-%patch003 -p1
-%endif
 
 # tzdata-2018g introduced 25:00 transition times.  This breaks OpenJDK.
 # Use rearguard for java
@@ -177,6 +171,11 @@ echo ============END TESTING===========
 %{_datadir}/javazi-1.8
 
 %changelog
+* Fri Mar 06 2026 Patsy Griffin <patsy@redhat.com> - 2026a-1
+- Update to tzdata-2026a (RHEL-154025)
+  - Correct the transition times for Moldova.
+  - The POSIXRULES option is now obsolete.
+
 * Wed Dec 10 2025 Patsy Griffin <patsy@redhat.com> - 2025c-1
 - Update to tzdata-2025c (RHEL-135158)
   - Update leap seconds file expiration date