diff --git a/0010-modprobe-Implement-allow-unsupported-modules.patch b/0010-modprobe-Implement-allow-unsupported-modules.patch
index 2af1f95..58d333d 100644
--- a/0010-modprobe-Implement-allow-unsupported-modules.patch
+++ b/0010-modprobe-Implement-allow-unsupported-modules.patch
@@ -14,12 +14,11 @@ Patch-mainline: never
  create mode 100644 libkmod/libkmod-unsupported.c
  create mode 100644 libkmod/libkmod-unsupported.h
 
-Index: kmod-27/Makefile.am
-===================================================================
---- kmod-27.orig/Makefile.am
-+++ kmod-27/Makefile.am
-@@ -93,7 +93,9 @@ libkmod_libkmod_la_LIBADD = \
- 	${liblzma_LIBS} ${zlib_LIBS} ${libcrypto_LIBS}
+diff -u kmod-28.orig/Makefile.am kmod-28/Makefile.am
+--- kmod-28.orig/Makefile.am	2021-01-07 19:29:12.972438665 +0100
++++ kmod-28/Makefile.am	2021-01-28 12:59:16.613421834 +0100
+@@ -108,7 +108,9 @@
+ 	${libzstd_LIBS} ${liblzma_LIBS} ${zlib_LIBS} ${libcrypto_LIBS}
  
  noinst_LTLIBRARIES += libkmod/libkmod-internal.la
 -libkmod_libkmod_internal_la_SOURCES = $(libkmod_libkmod_la_SOURCES)
diff --git a/kmod-27.tar.sign b/kmod-27.tar.sign
deleted file mode 100644
index e8d2227..0000000
--- a/kmod-27.tar.sign
+++ /dev/null
@@ -1,16 +0,0 @@
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diff --git a/kmod-27.tar.xz b/kmod-27.tar.xz
deleted file mode 100644
index 1b65b16..0000000
--- a/kmod-27.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:c1d3fbf16ca24b95f334c1de1b46f17bbe5a10b0e81e72668bdc922ebffbbc0c
-size 548924
diff --git a/kmod-28.tar.sign b/kmod-28.tar.sign
new file mode 100644
index 0000000..0787a7c
--- /dev/null
+++ b/kmod-28.tar.sign
@@ -0,0 +1,16 @@
+-----BEGIN PGP SIGNATURE-----
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+=FrBq
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diff --git a/kmod-28.tar.xz b/kmod-28.tar.xz
new file mode 100644
index 0000000..dc16ace
--- /dev/null
+++ b/kmod-28.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3969fc0f13daa98084256337081c442f8749310089e48aa695c9b4dfe1b3a26c
+size 552448
diff --git a/kmod-testsuite.spec b/kmod-testsuite.spec
index d994cf2..a50c2a4 100644
--- a/kmod-testsuite.spec
+++ b/kmod-testsuite.spec
@@ -18,7 +18,7 @@
 
 Name:           kmod-testsuite
 %define lname	libkmod2
-Version:        27
+Version:        28
 Release:        0
 Summary:        Testsuite of the kmod package
 License:        LGPL-2.1-or-later AND GPL-2.0-or-later
@@ -47,7 +47,9 @@ BuildRequires:  libtool
 BuildRequires:  libxslt-tools
 BuildRequires:  pkgconfig >= 0.21
 BuildRequires:  xz
+BuildRequires:  zstd
 BuildRequires:  pkgconfig(liblzma) >= 4.99
+BuildRequires:  pkgconfig(libzstd) >= 1.4.4
 BuildRequires:  pkgconfig(zlib)
 Requires:       suse-module-tools
 %if !0%{?is_opensuse}
@@ -72,6 +74,7 @@ export LDFLAGS="-Wl,-z,relro,-z,now"
 %configure \
 	--with-xz \
 	--with-zlib \
+	--with-zstd \
 	--with-openssl \
 	--includedir="%_includedir/kmod" \
 	--with-rootlibdir="%_libdir" \
diff --git a/kmod.changes b/kmod.changes
index a90de1b..d4ec7f8 100644
--- a/kmod.changes
+++ b/kmod.changes
@@ -1,3 +1,14 @@
+-------------------------------------------------------------------
+Thu Jan 28 12:05:17 UTC 2021 - Michal Suchanek <msuchanek@suse.com>
+
+- Update to v28
+  * Add Zstandard to the supported compression formats using libzstd
+     (tests only - cannot be disabled in tests)
+  * Ignore ill-formed kernel command line, e.g. with "ivrs_acpihid[00:14.5]=AMD0020:0"
+    option in it
+  * Fix some memory leaks
+  * Fix 0-length builtin.alias.bin: it needs at least the index header
+
 -------------------------------------------------------------------
 Thu Jan 28 11:03:09 UTC 2021 - Petr Vorel <pvorel@suse.cz>
 
diff --git a/kmod.spec b/kmod.spec
index 9a92261..4623d91 100644
--- a/kmod.spec
+++ b/kmod.spec
@@ -18,7 +18,7 @@
 
 Name:           kmod
 %define lname	libkmod2
-Version:        27
+Version:        28
 Release:        0
 Summary:        Utilities to load modules into the kernel
 License:        LGPL-2.1-or-later AND GPL-2.0-or-later