diff --git a/.gitignore b/.gitignore
index bf5189f..efd0a34 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
 javazic-1.8-37392f2f5d59.tar.xz
-tzcode2025c.tar.gz
-tzdata2025c.tar.gz
+tzcode2026a.tar.gz
+tzdata2026a.tar.gz
diff --git a/0003-continue-to-ship-posixrules.patch b/0003-continue-to-ship-posixrules.patch
deleted file mode 100644
index fa905d3..0000000
--- a/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/sources b/sources
index 0b8efef..02fc627 100644
--- a/sources
+++ b/sources
@@ -1,3 +1,3 @@
 SHA512 (javazic-1.8-37392f2f5d59.tar.xz) = 2ba718dfeed53a3bd6b44e3dfe96338a609e482e4e6d942e2a7e622fc6c52606cb323ac3a59739c463e34f70fff217c0a61f5b3d3c4958eff2801b1504ee4204
-SHA512 (tzcode2025c.tar.gz) = d14bc0680b9cb33d6526a2c0e483f2abafc2593cfe5fbfe7dcab940aafdc1baaec065dbaa1bb58b03586a8631ffdf43ebb22ff5a70503298b6ea2cf061d82c16
-SHA512 (tzdata2025c.tar.gz) = 1e33f7212fd0ae2ad3c16e68f0c1fc7a6ad26a126b8406c379a5768d79604c6a816054bd0fe3a63228d70cd6a1fc2b1bae2a9f8014e102d3727eb9d21affa1f1
+SHA512 (tzcode2026a.tar.gz) = 69a2ad3334ab1491ba349fcd5d3066a26b38ccb59031fec70ca19379cb0514fe2757af7bee31e796913c0cfc322134e2ba16f93ba07fa45cd4a415b9122b2f27
+SHA512 (tzdata2026a.tar.gz) = 407e8e93aaa054a22a4a7d6d8cf480a20630073bf1a00956df16b10318f239a12015de38fad3072249193e314d6fddbff4e74afa40a88f7bf5c9eecc7659ea15
diff --git a/tzdata.spec b/tzdata.spec
index 89b5f5b..a5e4f75 100644
--- a/tzdata.spec
+++ b/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: LicenseRef-Fedora-Public-Domain AND (GPL-2.0-only WITH ClassPath-exception-2.0)
 URL: https://www.iana.org/time-zones
@@ -10,7 +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-error.patch
-Patch003: 0003-continue-to-ship-posixrules.patch
 
 BuildRequires: make
 BuildRequires: gcc
@@ -39,9 +38,6 @@ This package contains timezone information for use by Java runtimes.
 %setup -q -c -a 1
 
 %patch -p1 -P 2
-%if 0%{?rhel}
-%patch -p1 -P 3
-%endif
 
 # tzdata-2018g introduced 25:00 transition times.  This breaks OpenJDK.
 # Use rearguard for java
@@ -138,6 +134,11 @@ echo ============END TESTING===========
 %{_datadir}/javazi-1.8
 
 %changelog
+* Fri Mar 06 2026 Patsy Griffin <patsy@redhat.com> - 2026a-1
+- Update to tzdata-2026a (RHEL-154023)
+  - 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-135156)
   - Update leap seconds file expiration date