diff --git a/lzma-sdk.changes b/lzma-sdk.changes
index 3ec4e77..abfe05e 100644
--- a/lzma-sdk.changes
+++ b/lzma-sdk.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Mon Jan 29 20:45:47 UTC 2018 - aloisio@gmx.com
+
+- Update to version 18.01
+  * Some changes in LZMA2/xz multithreading code for compressing.
+    Some bugs were fixed.
+
 -------------------------------------------------------------------
 Mon Jan  8 08:02:11 UTC 2018 - jengelh@inai.de
 
diff --git a/lzma-sdk.spec b/lzma-sdk.spec
index c896f24..1f17297 100644
--- a/lzma-sdk.spec
+++ b/lzma-sdk.spec
@@ -16,11 +16,11 @@
 #
 
 
-%define _sver   1701
-%define _maver  17
+%define _sver   1801
+%define _maver  18
 %define _miver  01
 Name:           lzma-sdk
-Version:        17.01
+Version:        18.01
 Release:        0
 Summary:        An implementation of LZMA compression
 # Actually the site says "Public Domain". See license file.
@@ -37,7 +37,6 @@ BuildRequires:  gcc-c++
 BuildRequires:  libtool
 BuildRequires:  p7zip
 BuildRequires:  pkg-config
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
 LZMA SDK provides documentation, samples, header files, libraries,
diff --git a/lzma1701.7z b/lzma1701.7z
deleted file mode 100644
index e7b25bb..0000000
--- a/lzma1701.7z
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:0daa0a15a3a2b6a8c9459744e4a25f7a26fdae0e9e406e0ac0809c3fbbacf2e4
-size 1005375
diff --git a/lzma1801.7z b/lzma1801.7z
new file mode 100644
index 0000000..eeee810
--- /dev/null
+++ b/lzma1801.7z
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:630f2534f73633011d60c6724cd8c1b3e549edd844dc09f54aae358d64089802
+size 1007853