diff --git a/.gitignore b/.gitignore
index dcfb1d4..66d7ba1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /opa-fm-10.11.0.1.2.tar.xz
 /opa-fm-10.11.0.2.tar.xz
+/v10.11.1.3.1.tar.gz
diff --git a/opa-fm.spec b/opa-fm.spec
index 534927d..8ad0525 100644
--- a/opa-fm.spec
+++ b/opa-fm.spec
@@ -1,17 +1,20 @@
+# One of the steps this package's insane build system does is patching version
+# strings in built binaries (MakeTools/patch_version/patch_version.c).
+# The expected template of a version string (ICS_BUILD_VERSION from
+# CodeVersion/code_version.c) is not found in binaries that contain a
+# GetCodeVersion() call. I suspect LTO optimizes it away.
+# Disabling LTO made the build work.
+%global _lto_cflags %{nil}
+
 Name: opa-fm
 Epoch: 1
-Version: 10.11.0.2
+Version: 10.11.1.3.1
 Release: 1%{?dist}
 Summary: Intel Omni-Path Fabric Management Software
 
 License: GPLv2 or BSD
 Url: https://github.com/cornelisnetworks/opa-fm
-# tarball created by:
-# git clone https://github.com/cornelisnetworks/opa-fm
-# cd opa-fm
-# git archive --format=tar --prefix=opa-fm-%{version}/ \
-# 5d1f7ee32920b1b429e2f7699762514af47d9717 | xz > opa-fm-%{version}.tar.xz
-Source0: %{name}-%{version}.tar.xz
+Source0: https://github.com/cornelisnetworks/opa-fm/archive/refs/tags/v%{version}.tar.gz
 
 # bz1262327 needs Patch0002
 Patch0002: 0001-Fix-well-known-tempfile-issue-in-script.patch
@@ -82,6 +85,10 @@ chmod a-x %{buildroot}/%{_prefix}/share/opa-fm/opafm_src.xml
 %{_mandir}/man8/*
 
 %changelog
+* Wed Aug 03 2022 Michal Schmidt <mschmidt@redhat.com> - 10.11.1.3.1-1
+- Update to upstream release 10.11.1.3.1
+- Resolves: rhbz#2049171
+
 * Tue Oct 19 2021 Honggang Li <honli@redhat.com> - 1:10.11.0.2-1
 - Rebase to upstream release 10.11.0.2
 - Resolves: rhbz2013070
diff --git a/sources b/sources
index 0ce5d07..7b8988f 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (opa-fm-10.11.0.2.tar.xz) = 905a4cef2f663edd8e775ebf33fd48d28e9c9e82c3f5d0a01a3d1f4de51f071239247d66840050ebb8a1121054efd4feb4664bcfff9549578328de5f7b6b7fa5
+SHA512 (v10.11.1.3.1.tar.gz) = 214635aadf7af337eb1c72f554bf86aadf3d6adc38b4040a14e1bded5099f1a15e25cd9de15aa0c344f2c5221427590af24b7507f0ecbc1f87503a0e16ff3844