diff --git a/baselibs.conf b/baselibs.conf
index e8b3bc5..ac280b8 100644
--- a/baselibs.conf
+++ b/baselibs.conf
@@ -1 +1 @@
-libass5
+libass9
diff --git a/libass-0.13.4.tar.xz b/libass-0.13.4.tar.xz
deleted file mode 100644
index 61e5d32..0000000
--- a/libass-0.13.4.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d84a2fc89011b99d87fc47af91906622707c165d1860e9f774825ebbbc9c9fb6
-size 350840
diff --git a/libass-0.13.6.tar.xz b/libass-0.13.6.tar.xz
new file mode 100644
index 0000000..61e8662
--- /dev/null
+++ b/libass-0.13.6.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f8a874d104e3e72e2cc057e5a1710c650b10367486845a26e5ff28ed7a912c2d
+size 350144
diff --git a/libass.changes b/libass.changes
index 5b54e3c..14e03e6 100644
--- a/libass.changes
+++ b/libass.changes
@@ -1,3 +1,23 @@
+-------------------------------------------------------------------
+Tue Feb 21 15:06:56 UTC 2017 - mpluskal@suse.com
+
+- Update to version 0.13.6:
+  * Add Justify style override that changes text justification
+    (left/right/center) without affecting event positioning. This
+    breaks ABI compatibility with prior releases.
+  * Fix ass_set_cache_limits() to affect total bitmap cache size
+    including composite bitmap cache.
+  * Number parsing fixes
+    + Fix illegal read when parsing some numbers in scientific
+      notation with huge exponents.
+    + Correctly evaluate numbers in scientific notation with large
+      exponents.
+    + Correctly evaluate numbers with many leading zeros.
+  * Bug fixes found with fuzzing
+    + Fix a small memory leak in the parser.
+    + Fix illegal read in the parser on specially crafted input
+      with \t tags.
+
 -------------------------------------------------------------------
 Wed Oct  5 08:22:48 UTC 2016 - tchvatal@suse.com
 
diff --git a/libass.spec b/libass.spec
index 4814d3b..3ee9bc3 100644
--- a/libass.spec
+++ b/libass.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libass
 #
-# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2017 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
@@ -16,9 +16,9 @@
 #
 
 
-%define soname 5
+%define sover   9
 Name:           libass
-Version:        0.13.4
+Version:        0.13.6
 Release:        0
 Summary:        Library for SSA/ASS-formatted subtitle rendering
 License:        ISC
@@ -26,7 +26,7 @@ Group:          Development/Libraries/C and C++
 Url:            https://github.com/libass/libass
 Source:         https://github.com/libass/libass/releases/download/%{version}/%{name}-%{version}.tar.xz
 Source99:       baselibs.conf
-BuildRequires:  pkg-config
+BuildRequires:  pkgconfig
 BuildRequires:  xz
 BuildRequires:  yasm
 BuildRequires:  pkgconfig(fontconfig) >= 2.10.92
@@ -39,11 +39,11 @@ libass is a subtitle renderer for the ASS/SSA
 (Advanced Substation Alpha/Substation Alpha) subtitle
 format. It is mostly compatible with VSFilter.
 
-%package -n libass%{soname}
+%package -n libass%{sover}
 Summary:        Library for SSA/ASS-formatted subtitle rendering
 Group:          System/Libraries
 
-%description -n libass%{soname}
+%description -n libass%{sover}
 libass is a subtitle renderer for the ASS/SSA
 (Advanced Substation Alpha/Substation Alpha) subtitle
 format. It is mostly compatible with VSFilter.
@@ -52,7 +52,7 @@ format. It is mostly compatible with VSFilter.
 Summary:        Development files for libass, a subtitle rendering library
 Group:          Development/Libraries/C and C++
 Requires:       glibc-devel
-Requires:       libass%{soname} = %{version}
+Requires:       libass%{sover} = %{version}
 Requires:       pkgconfig(fontconfig)
 Requires:       pkgconfig(freetype2) >= 9.10.3
 Requires:       pkgconfig(fribidi) >= 0.19.0
@@ -66,26 +66,26 @@ This package is needed if you want to develop / compile against libASS.
 
 %build
 %configure \
-	--disable-silent-rules \
-	--disable-static
+  --disable-silent-rules \
+  --disable-static
 make %{?_smp_mflags}
 
 %install
-make DESTDIR='%{buildroot}' install
+%make_install
 find %{buildroot} -type f -name "*.la" -delete -print
 
 %check
 make %{?_smp_mflags} check
 
-%post -n libass%{soname} -p /sbin/ldconfig
-%postun -n libass%{soname} -p /sbin/ldconfig
+%post -n libass%{sover} -p /sbin/ldconfig
+%postun -n libass%{sover} -p /sbin/ldconfig
 
-%files -n libass%{soname}
-%defattr(-, root, root)
-%{_libdir}/libass.so.%{soname}*
+%files -n libass%{sover}
+%defattr(-,root,root)
+%{_libdir}/libass.so.%{sover}*
 
 %files devel
-%defattr(-, root, root)
+%defattr(-,root,root)
 %{_includedir}/ass
 %{_libdir}/libass.so
 %{_libdir}/pkgconfig/libass.pc