diff --git a/.gitignore b/.gitignore
index 51713f2..7b4b161 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 SOURCES/javazic-1.8-37392f2f5d59.tar.xz
 SOURCES/javazic.tar.gz
-SOURCES/tzcode2017a.tar.gz
-SOURCES/tzdata2017a.tar.gz
+SOURCES/tzcode2017b.tar.gz
+SOURCES/tzdata2017b.tar.gz
diff --git a/.tzdata.metadata b/.tzdata.metadata
index 3a0804b..a974fd9 100644
--- a/.tzdata.metadata
+++ b/.tzdata.metadata
@@ -1,4 +1,4 @@
 77292e1839952807567570118e01405b405af80c SOURCES/javazic-1.8-37392f2f5d59.tar.xz
 ee8ad215161cd132e65e2be447b279457158b540 SOURCES/javazic.tar.gz
-033ae665967d5531a0e108431cbf79c9f147f27d SOURCES/tzcode2017a.tar.gz
-31cf148e8bb97fe60bc7879a9e2570aa207925ff SOURCES/tzdata2017a.tar.gz
+b873572cd29bcc7e1f56b32a6e414c2d5d96dac9 SOURCES/tzcode2017b.tar.gz
+0f13bbb641f5742796609d3484006fe01fa654f1 SOURCES/tzdata2017b.tar.gz
diff --git a/SOURCES/0001-Fix-Liberia-1972-transition-and-pre-1972-abbr.patch b/SOURCES/0001-Fix-Liberia-1972-transition-and-pre-1972-abbr.patch
deleted file mode 100644
index 07e65e4..0000000
--- a/SOURCES/0001-Fix-Liberia-1972-transition-and-pre-1972-abbr.patch
+++ /dev/null
@@ -1,75 +0,0 @@
-From d582a6e3b650d3f66ac43968696ee94b53166f1a Mon Sep 17 00:00:00 2001
-From: Paul Eggert <eggert@cs.ucla.edu>
-Date: Thu, 2 Mar 2017 01:30:19 -0800
-Subject: [PROPOSED] Fix Liberia 1972 transition and pre-1972 abbr
-
-* NEWS: Document this.
-* africa (Africa/Monrovia): The 1972 transition was on January 7,
-not May 1.  (Shanks was wrong again! and Howse was right.)
-Use MMT for pre-1972 abbreviation.
----
- NEWS   | 10 ++++++++++
- africa | 25 ++++++++++++++++---------
- 2 files changed, 26 insertions(+), 9 deletions(-)
-
-diff --git a/NEWS b/NEWS
-index 306685a..b3917d0 100644
---- a/NEWS
-+++ b/NEWS
-@@ -1,5 +1,15 @@
- News for the tz database
- 
-+Unreleased, experimental changes
-+
-+  Changes to past time stamps
-+
-+    Liberia changed from -004430 to +00 on 1972-01-07, not 1972-05-01.
-+
-+    Use "MMT" to abbreviate Liberia's time zone before 1972, as "-004430"
-+    is one byte over the POSIX limit.  (Problem reported by Derick Rethans.)
-+
-+
- Release 2017a - 2017-02-28 00:05:36 -0800
- 
-   Briefly: Southern Chile moves from -04/-03 to -03, and Mongolia
-diff --git a/africa b/africa
-index e617396..dcc20b9 100644
---- a/africa
-+++ b/africa
-@@ -420,18 +420,25 @@ Link Africa/Nairobi Indian/Mayotte
- # See Africa/Johannesburg.
- 
- # Liberia
--# From Paul Eggert (2006-03-22):
--# In 1972 Liberia was the last country to switch
--# from a UTC offset that was not a multiple of 15 or 20 minutes.
--# Howse reports that it was in honor of their president's birthday.
--# Shank & Pottenger report the date as May 1, whereas Howse reports Jan;
--# go with Shanks & Pottenger.
--# For Liberia before 1972, Shanks & Pottenger report -0:44, whereas Howse and
--# Whitman each report -0:44:30; go with the more precise figure.
-+#
-+# From Paul Eggert (2017-03-02):
-+#
-+# The Nautical Almanac for the Year 1970, p 264, is the source for -0:44:30.
-+#
-+# In 1972 Liberia was the last country to switch from a UTC offset
-+# that was not a multiple of 15 or 20 minutes.  The 1972 change was on
-+# 1972-01-07, according to an entry dated 1972-01-04 on p 330 of:
-+# Presidential Papers: First year of the administration of
-+# President William R. Tolbert, Jr., July 23, 1971-July 31, 1972.
-+# Monrovia: Executive Mansion.
-+#
-+# Use the abbreviation "MMT" before 1972, as the more-accurate numeric
-+# abbreviation "-004430" would be one byte over the POSIX limit.
-+#
- # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
- Zone	Africa/Monrovia	-0:43:08 -	LMT	1882
- 			-0:43:08 -	MMT	1919 Mar # Monrovia Mean Time
--			-0:44:30 -	-004430	1972 May
-+			-0:44:30 -	MMT	1972 Jan 7 # approximately MMT
- 			 0:00	-	GMT
- 
- ###############################################################################
--- 
-2.7.4
diff --git a/SPECS/tzdata.spec b/SPECS/tzdata.spec
index d3b471f..fa509d7 100644
--- a/SPECS/tzdata.spec
+++ b/SPECS/tzdata.spec
@@ -1,8 +1,8 @@
 Summary: Timezone data
 Name: tzdata
-Version: 2017a
-%define tzdata_version 2017a
-%define tzcode_version 2017a
+Version: 2017b
+%define tzdata_version 2017b
+%define tzcode_version 2017b
 Release: 1%{?dist}
 License: Public Domain
 Group: System Environment/Base
@@ -10,8 +10,6 @@ URL: https://www.iana.org/time-zones
 Source0: ftp://ftp.iana.org/tz/releases/tzdata%{tzdata_version}.tar.gz
 Source1: ftp://ftp.iana.org/tz/releases/tzcode%{tzcode_version}.tar.gz
 
-Patch0: 0001-Fix-Liberia-1972-transition-and-pre-1972-abbr.patch
-
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires: gawk, glibc, perl
 BuildRequires: glibc-common >= 2.5.90-7
@@ -43,8 +41,6 @@ This package contains timezone information for use by Java runtimes.
 %prep
 %setup -q -c -a 1
 
-%patch0 -p1
-
 mkdir javazic
 tar zxf %{SOURCE3} -C javazic
 pushd javazic
@@ -127,6 +123,10 @@ rm -rf $RPM_BUILD_ROOT
 %{_datadir}/javazi-1.8
 
 %changelog
+* Mon Mar 20 2017 Patsy Franklin <pfrankli@redhat.com> - 2017b-1
+- Rebase to tzdata-2017b.
+  - Haiti resumed DST on March 12, 2017.
+
 * Wed Mar 01 2017 Patsy Franklin <pfrankli@redhat.com> - 2017a-1
 - Rebase to tzdata-2017a.
   - Mongolia no longer observes DST. (BZ #1425214)