diff --git a/timezone-java.changes b/timezone-java.changes
index 08299af..2f2374f 100644
--- a/timezone-java.changes
+++ b/timezone-java.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Fri Jan 19 08:56:37 UTC 2018 - astieger@suse.com
+
+- timezone update 2018c:
+  * São Tomé and Príncipe switched from +00 to +01 on 2018-01-01
+  * Southern Brazil's DST will now start on November's first Sunday
+    (bsc#1073275)
+  * New zic option -t to specify the time zone file if TZ is unset
+
 -------------------------------------------------------------------
 Mon Oct 23 15:26:15 UTC 2017 - astieger@suse.com
 
diff --git a/timezone-java.spec b/timezone-java.spec
index a6c3f68..878e910 100644
--- a/timezone-java.spec
+++ b/timezone-java.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package timezone-java
 #
-# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -25,7 +25,7 @@ Summary:        Time Zone Descriptions
 # COMMON-BEGIN
 License:        BSD-3-Clause and SUSE-Public-Domain
 Group:          System/Base
-Version:        2017c
+Version:        2018c
 Release:        0
 Source:         https://www.iana.org/time-zones/repository/releases/tzdata%{version}.tar.gz
 Source1:        https://www.iana.org/time-zones/repository/releases/tzcode%{version}.tar.gz
@@ -37,7 +37,7 @@ Patch0:         tzdata-china.diff
 Patch3:         iso3166-uk.diff
 # COMMON-END
 # COMMON-END
-Url:            http://www.gnu.org/software/libc/libc.html
+Url:            https://www.iana.org/time-zones
 Requires(pre):  filesystem, coreutils
 BuildArch:      noarch
 Provides:       tzdata-java = %{version}-%{release}
diff --git a/timezone-java.spec.in b/timezone-java.spec.in
index d302396..24127de 100644
--- a/timezone-java.spec.in
+++ b/timezone-java.spec.in
@@ -1,7 +1,7 @@
 #
 # spec file for package timezone-java
 #
-# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -25,7 +25,7 @@ License:        BSD-3-Clause and SUSE-Public-Domain
 Group:          System/Base
 # COMMON-BEGIN
 # COMMON-END
-Url:            http://www.gnu.org/software/libc/libc.html
+Url:            https://www.iana.org/time-zones
 Requires(pre):  filesystem, coreutils
 BuildArch:      noarch
 Provides:       tzdata-java = %{version}-%{release}
diff --git a/timezone.changes b/timezone.changes
index 08299af..2f2374f 100644
--- a/timezone.changes
+++ b/timezone.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Fri Jan 19 08:56:37 UTC 2018 - astieger@suse.com
+
+- timezone update 2018c:
+  * São Tomé and Príncipe switched from +00 to +01 on 2018-01-01
+  * Southern Brazil's DST will now start on November's first Sunday
+    (bsc#1073275)
+  * New zic option -t to specify the time zone file if TZ is unset
+
 -------------------------------------------------------------------
 Mon Oct 23 15:26:15 UTC 2017 - astieger@suse.com
 
diff --git a/timezone.spec b/timezone.spec
index c29a039..35f2615 100644
--- a/timezone.spec
+++ b/timezone.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package timezone
 #
-# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -23,7 +23,7 @@ Group:          System/Base
 Url:            http://www.iana.org/time-zones
 PreReq:         filesystem, coreutils
 # COMMON-BEGIN
-Version:        2017c
+Version:        2018c
 Release:        0
 Source:         https://www.iana.org/time-zones/repository/releases/tzdata%{version}.tar.gz
 Source1:        https://www.iana.org/time-zones/repository/releases/tzcode%{version}.tar.gz
diff --git a/tzcode2017c.tar.gz b/tzcode2017c.tar.gz
deleted file mode 100644
index 370b56e..0000000
--- a/tzcode2017c.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:81e8b4bc23e60906640c266bbff3789661e22f0fa29fe61b96ec7c2816c079b7
-size 219346
diff --git a/tzcode2017c.tar.gz.asc b/tzcode2017c.tar.gz.asc
deleted file mode 100644
index 26e5943..0000000
--- a/tzcode2017c.tar.gz.asc
+++ /dev/null
@@ -1,16 +0,0 @@
------BEGIN PGP SIGNATURE-----
-
-iQIcBAABAgAGBQJZ6nFEAAoJEO2X6Q5iqn40JnoP/i8JCoxp5Vb+oxD2F8hz85+S
-ikzzi0+l5vMifyI9+/kxU/V+W1YvLC3zbUMLN6moE65WryjRnXCJXfTzNyFUON0H
-Dg7a1al0mNcq5D4YIvR6C/O5SJdRNW6VNW0A0owXV8ZafAzUbe5ICoUKQ69DC3ps
-jKXjO9qsyxne7rqjaqCyJAGVRHdx82p7XRvr5JCtU5vEGoclCDglWN4cUP09019q
-azA1eYfqkqS+uf3KzPVc8e/0slAdXOqOib7NNFY/Y90wFUlKuhgHdOXVy9bIvdeP
-PQmNlXNi1TC/gYNtqdxoeCsWSnOCMW9f/v9vBZTB8Oh8Ycm6U+YSAKZxlaVP5zUa
-VEnyMxDjKOD6YcqGHqx035TFxaAfaDDvDRACcA98SdTcBr7TgY4Ubxv0kCQ007Vr
-BYesKUcVpE8/wsh6dDHbaZzK01bJkJYGr44UZBwOwAbbkyCG+HDv3J6eg4UphQq0
-HITxJLsaiJcJnR/l8YVSrzSHXIftwRIhGbab3BFuPAN7nDEZFrhUkZdMwac4B6E8
-gsVxLYK3SJyFz9Jx7D4oDBN+Nxt+54O3/GXYVtAF0k2hiytd6UFaIr1WsmdSVLzA
-kmBQNiyqJ9jOPJ75B/r4x15JRZfNFDKJZ7AMqo6QthKZrurK93uuR20OKZmklnLr
-Vwcz+6pYTUf9bRrRfyXg
-=drdL
------END PGP SIGNATURE-----
diff --git a/tzcode2018c.tar.gz b/tzcode2018c.tar.gz
new file mode 100644
index 0000000..67d5fa0
--- /dev/null
+++ b/tzcode2018c.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:31fa7fc0f94a6ff2d6bc878c0a35e8ab8b5aa0e8b01445a1d4a8f14777d0e665
+size 223876
diff --git a/tzcode2018c.tar.gz.asc b/tzcode2018c.tar.gz.asc
new file mode 100644
index 0000000..f020270
--- /dev/null
+++ b/tzcode2018c.tar.gz.asc
@@ -0,0 +1,17 @@
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v1
+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+=gt0T
+-----END PGP SIGNATURE-----
diff --git a/tzdata2017c.tar.gz b/tzdata2017c.tar.gz
deleted file mode 100644
index 275473f..0000000
--- a/tzdata2017c.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d6543f92a929826318e2f44ff3a7611ce5f565a43e10250b42599d0ba4cbd90b
-size 335571
diff --git a/tzdata2017c.tar.gz.asc b/tzdata2017c.tar.gz.asc
deleted file mode 100644
index aa22fa9..0000000
--- a/tzdata2017c.tar.gz.asc
+++ /dev/null
@@ -1,16 +0,0 @@
------BEGIN PGP SIGNATURE-----
-
-iQIcBAABAgAGBQJZ6nFvAAoJEO2X6Q5iqn40dFwP/31AK4shXM+vRKf28szHxBwk
-gTHTka+WMvQdhRtkgQvRXDQo1q9QiI/t4l3x0TpxkkuZATA6Yf1AhV7ugFFfl8Ia
-0bc+8uXnv8XnpZ3Qbk57B6J6LEsaMOeaXv1vIZ6x8E/oaDECAV4o2+dpDl5kdNTr
-O6hcUZwY1Rd8CcJCvOPSFfRV1kNcPXCaKQPh0Z5uohqC7DLmxhtagsiMeUmzInV/
-Q1bPOJXF4sD9X7A6hKqk4oyFQvJrYjv/JeM5eoreHIXdSLqvvwhhqCSMx6A76NDA
-1/rKFZxqBLojlLmG07SXsCMC9OmD2m709sHKPx0foixhlmB9QJjDm62EjPPwfXd9
-AH/3jxolQQq8DCC4XyqLblzPORfFNwZ4vWC3QpTNsQOdqBdkKpfNYXIZTxGL/8Ti
-6GtCwmp2E5+gXoV1uTHY51nLNjuI47XdUReh+eBWAWh95gJiKspStHebWLFsbUhg
-/YM9K9efhu5UaA3BxJn3SpXR43zeNDSUOmyIB+kyRQZDXSK/K0ukwgZPMzq8QuR8
-aFB7K0YztC8P6SXIGOgMsWuVp06Cx4QQAdnvy9pcx0iDUUNoh/n+isvwfBCvvUvq
-ETDnuGYxsUTjlDvORG1VHg14sr4AdyTl3PH12cOscVP4fq5JV91cE4FBHwjD3jSx
-Lp4Yb/wfGxGLgqPmpY/I
-=C3sx
------END PGP SIGNATURE-----
diff --git a/tzdata2018c.tar.gz b/tzdata2018c.tar.gz
new file mode 100644
index 0000000..47f9a1a
--- /dev/null
+++ b/tzdata2018c.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2825c3e4b7ef520f24d393bcc02942f9762ffd3e7fc9b23850789ed8f22933f6
+size 341074
diff --git a/tzdata2018c.tar.gz.asc b/tzdata2018c.tar.gz.asc
new file mode 100644
index 0000000..cd6ffcd
--- /dev/null
+++ b/tzdata2018c.tar.gz.asc
@@ -0,0 +1,17 @@
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v1
+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+=nVJg
+-----END PGP SIGNATURE-----