diff --git a/.gitignore b/.gitignore
index ff44476..73c5d40 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,3 +47,4 @@ microcode-20100826.dat
 /microcode_ctl-2.1-25.tar.xz
 /microcode_ctl-2.1-26.tar.xz
 /microcode_ctl-2.1-27.tar.xz
+/microcode_ctl-2.1-28.tar.xz
diff --git a/microcode_ctl.spec b/microcode_ctl.spec
index 42fa324..61f0f61 100644
--- a/microcode_ctl.spec
+++ b/microcode_ctl.spec
@@ -1,10 +1,10 @@
-%define upstream_version 2.1-27
+%define upstream_version 2.1-28
 %global debug_package %{nil}
 
 Summary:        Tool to transform and deploy CPU microcode update for x86
 Name:           microcode_ctl
 Version:        2.1
-Release:        37%{?dist}
+Release:        38%{?dist}
 Epoch:          2
 License:        GPLv2+ and Redistributable, no modification permitted
 URL:            https://pagure.io/microcode_ctl
@@ -34,6 +34,9 @@ make DESTDIR=%{buildroot} PREFIX=%{_prefix} INSDIR=/usr/sbin install clean
 
 
 %changelog
+* Wed Jun 10 2020 Anton Arapov <aarapov@redhat.com> 2:2.1-38
+- Update to upstream 2.1-28. 20200609
+
 * Thu May 21 2020 Anton Arapov <aarapov@redhat.com> 2:2.1-37
 - Update to upstream 2.1-27. 20200520
 
diff --git a/sources b/sources
index 147385d..b18c11a 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (microcode_ctl-2.1-27.tar.xz) = 5db007ccda36d4b1b16310bc42ee49c8de068fffd1b86ab83e6b20202d75251645a4f5e963d82851a011f88fd433f0d4a86890b4e31f6cfcd07444836572b661
+SHA512 (microcode_ctl-2.1-28.tar.xz) = b5b8faf84e941d936a6489ce65fec27369d61a8f913efc2d01d5e24a2b844b011eae6007b874eaf28bc4e03776831a1f96289416ec0ec47cb58b7eb0b6ba73e1