diff --git a/.gitignore b/.gitignore
index ebf7b2e..ea7f8ef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 SOURCES/javazic-1.8-37392f2f5d59.tar.xz
 SOURCES/javazic.tar.gz
-SOURCES/tzcode2020a.tar.gz
-SOURCES/tzdata2020a.tar.gz
+SOURCES/tzcode2021a.tar.gz
+SOURCES/tzdata2021a.tar.gz
diff --git a/.tzdata.metadata b/.tzdata.metadata
index 8a446dc..d8da3c4 100644
--- a/.tzdata.metadata
+++ b/.tzdata.metadata
@@ -1,4 +1,4 @@
 77292e1839952807567570118e01405b405af80c SOURCES/javazic-1.8-37392f2f5d59.tar.xz
 ee8ad215161cd132e65e2be447b279457158b540 SOURCES/javazic.tar.gz
-adda5022d02085cfe81862a6b8f60cd7df1dedde SOURCES/tzcode2020a.tar.gz
-d9f29aab03246713e6c5b792f49871846b4cfeda SOURCES/tzdata2020a.tar.gz
+a32c48108536f4e1cfc2b53ae502fd280e679c2a SOURCES/tzcode2021a.tar.gz
+a22a72dbe159402753a7d78ec0aa1cba6148b106 SOURCES/tzdata2021a.tar.gz
diff --git a/SOURCES/0003-continue-to-ship-posixrules.patch b/SOURCES/0003-continue-to-ship-posixrules.patch
new file mode 100644
index 0000000..1755352
--- /dev/null
+++ b/SOURCES/0003-continue-to-ship-posixrules.patch
@@ -0,0 +1,13 @@
+diff -Nrup a/Makefile b/Makefile
+--- a/Makefile	2020-10-13 15:58:12.000000000 -0400
++++ b/Makefile	2020-10-13 16:03:09.461302282 -0400
+@@ -60,7 +60,7 @@ LOCALTIME=	GMT
+ #	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 the time zone files cannot be accessed.
+Binary files a/tzdata2020b-rearguard.tar.gz and b/tzdata2020b-rearguard.tar.gz differ
diff --git a/SPECS/tzdata.spec b/SPECS/tzdata.spec
index 8ab7b61..28c31ae 100644
--- a/SPECS/tzdata.spec
+++ b/SPECS/tzdata.spec
@@ -1,8 +1,8 @@
 Summary: Timezone data
 Name: tzdata
-Version: 2020a
-%define tzdata_version 2020a
-%define tzcode_version 2020a
+Version: 2021a
+%define tzdata_version 2021a
+%define tzcode_version 2021a
 Release: 1%{?dist}
 License: Public Domain
 Group: System Environment/Base
@@ -11,6 +11,7 @@ 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: gawk, glibc, perl-interpreter
 BuildRequires: java-devel
@@ -41,6 +42,7 @@ This package contains timezone information for use by Java runtimes.
 %setup -q -c -a 1
 
 %patch002 -p1
+%patch003 -p1
 
 # Currently tzdata is providing the "rearguard" data set for maximum
 # compatibility with existing Red Hat Enterprise Linux installs. Future releases of
@@ -147,6 +149,44 @@ echo ============END TESTING===========
 %{_datadir}/javazi-1.8
 
 %changelog
+* Sun Jan 24 2021 Patsy Griffin <patsy@redhat.com> - 2021a-1
+- Rebase to tzdata-2021a
+  - South Sudan will change from +03 to +02 on 2021-02-01.
+
+* Tue Dec 29 2020 Patsy Griffin <patsy@redhat.com> - 2020f-1
+- Rebase to tzdata-2020f including changes for tzdata-2020e
+  - tzdata-2020f fixes a bug in tzdata-2020e that caused an
+    invalid zi file in rearguard format
+  - Volgograd changes time zone from UTC+04 to UTC+03 on 2020-12-27.
+  - Australia/Currie is identical to Australia/Hobart for all
+    timestamps since 1970 and was therefore created by mistake,
+    now moved to the "backward" file.
+
+* Wed Oct 21 2020 Patsy Griffin <patsy@redhat.com> - 2020d-1
+- Rebase to tzdata-2020d
+ - Palestine will end summer time on 2020-10-24 rather than the
+   predicted 2020-10-31.
+
+* Mon Oct 19 2020 Patsy Griffin <patsy@redhat.com> - 2020c-1
+- Rebase to tzdata-2020c
+  - Fiji starts DST later than usual, on 2020-12-20.
+  - Rearguard now provides an empty file pacificnew to support
+    downstream software that expects it.
+
+* Tue Oct 13 2020 Patsy Griffin <patsy@redhat.com> - 2020b-2
+- Include the upstream patch to support pacificnew for java tzupdater.
+- Set POSIXRULES macro to continue installing posixrules file. 
+
+* Wed Oct 07 2020 Patsy Griffin <patsy@redhat.com> - 2020b-1
+- Rebase to tzdata-2020b
+  - Yukon timezones represented by America/Whitehorse and
+    America/Dawson will change time zone rules from -08/-07 to
+    permanent -07 on 2020-11-01, not on 2020-03-08 as 2020a had it.
+  - The most recent winter(+08)/summer(+11) transition for Casey Station,
+    Antarctica was 2020-10-04 00:01.
+  - Remove obsolete files pacificnew, systemv, and yearistype.sh
+    from the distribution.
+
 * Fri Apr 24 2020 Patsy Griffin <patsy@redhat.com> - 2020a-1
 - Rebase to tzdata-2020a
   - Morocco will spring forward on 2020-05-31 rather than