diff --git a/.gitignore b/.gitignore
index 3939148..59485a6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,4 @@ noarch/
 /perftest-4.4-0.37.gb853c2d.tar.gz
 /perftest-4.5-0.2.gddb0705.tar.gz
 /perftest-4.5-0.12.ge93c538.tar.gz
+/perftest-4.5-0.20.gac7cca5.tar.gz
diff --git a/perftest.spec b/perftest.spec
index 52c6d00..e3a654d 100644
--- a/perftest.spec
+++ b/perftest.spec
@@ -1,9 +1,13 @@
 Name:           perftest
 Summary:        IB Performance Tests
-Version:        4.5
-Release:        12%{?dist}
+# Upstream uses a dash in the version. Not valid in the Version field, so we use a dot instead.
+%global upstream_ver 4.5-0.20
+# The directory in the tarball has only the part before the dash.
+%global tarball_ver 4.5
+Version:        4.5.0.20
+Release:        1%{?dist}
 License:        GPLv2 or BSD
-Source:         https://github.com/linux-rdma/perftest/releases/download/v4.5-0.12/perftest-4.5-0.12.ge93c538.tar.gz
+Source:         https://github.com/linux-rdma/perftest/releases/download/v4.5-0.20/perftest-4.5-0.20.gac7cca5.tar.gz
 Url:            https://github.com/linux-rdma/perftest
 
 BuildRequires:  make
@@ -22,7 +26,7 @@ connections.  It does not work on normal TCP/IP networks, only on
 RDMA networks.
 
 %prep
-%setup -q
+%setup -q -n %{name}-%{tarball_ver}
 find src -type f -iname '*.[ch]' -exec chmod a-x '{}' ';'
 
 %build
@@ -40,6 +44,10 @@ done
 %_bindir/*
 
 %changelog
+* Mon Feb 06 2023 Kamal Heib <kheib@redhat.com> - 4.5.0.20-1
+- Rebase to upstream release perftest-4.5-0.20
+- Resolves: rhbz#2167405
+
 * Tue Nov 09 2021 Honggang Li <honli@redhat.com> - 4.5-12
 - Rebase to upstream release perftest-4.5-0.12
 - Resolves: rhbz#2020061
diff --git a/sources b/sources
index 2a34d06..2f482a9 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (perftest-4.5-0.12.ge93c538.tar.gz) = 1768273026a9fd6177d559a897b9e356862f5f6db035432df1ffc464f73a706fb71bad6df9878dd3a8e3a1ef35b70b670e37c62b670df326523c81e9bcd74da7
+SHA512 (perftest-4.5-0.20.gac7cca5.tar.gz) = fa2a0ca4487134081b178576a0997476c60228847f13142d069d77c7ca69bb8634fd980a6c8e07741029dead677b4a4d0758521adaba046fb2bc2ce3b496ec82