diff --git a/.gitignore b/.gitignore
index 72bade4..84b94c1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,3 +32,4 @@ noarch/
 /mstflint-4.13.3-2.tar.gz
 /mstflint-4.14.0-1.tar.gz
 /mstflint-4.14.0-3.tar.gz
+/mstflint-4.15.0-1.tar.gz
diff --git a/mstflint.spec b/mstflint.spec
index e3b00d1..3b688e4 100644
--- a/mstflint.spec
+++ b/mstflint.spec
@@ -2,11 +2,11 @@
 
 Name:		mstflint
 Summary:	Mellanox firmware burning tool
-Version:	4.14.0
-Release:	5%{?dist}
+Version:	4.15.0
+Release:	1%{?dist}
 License:	GPLv2+ or BSD
 Group:		Applications/System
-Source: 	https://github.com/Mellanox/mstflint/releases/download/v4.14.0-3/mstflint-4.14.0-3.tar.gz
+Source: 	https://github.com/Mellanox/mstflint/releases/download/v4.15.0-1/mstflint-4.15.0-1.tar.gz
 Patch3: 	extend-buffer.patch
 Patch4: 	add-default-link-flags-for-shared-libraries.patch
 Patch6: 	replace-mlxfwreset-with-mstfwreset-in-mstflint-message.patch
@@ -25,7 +25,7 @@ This package contains firmware update tool, vpd dump and register dump tools
 for network adapters based on Mellanox Technologies chips.
 
 %prep
-%setup -q -n mstflint-4.14.0-3
+%setup -q -n mstflint-4.15.0
 %patch3 -p1
 %patch4 -p1
 %patch6 -p1
@@ -56,6 +56,9 @@ find %{buildroot} -type f -name '*.a' -delete
 %{_mandir}/man1/*
 
 %changelog
+* Wed Sep 16 2020 Honggang Li <honli@redhat.com> - 4.15.0-1
+- Rebase mstflint to latest upstream release v4.15.0-1
+
 * Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.14.0-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
 
diff --git a/sources b/sources
index d8bd746..508994b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (mstflint-4.14.0-3.tar.gz) = 12506e4ed8d546212c55fb49a5b594637fc3b68f3ed18fc6c14636dd0312e056c4738c58d113553637e8afa8693872f49ec6a7df9440763e073f5182918d5e3c
+SHA512 (mstflint-4.15.0-1.tar.gz) = 00a7302132ab6c4dd0d743dfa9a07c7468e8515f8f851a0a5f6ad2ae797e5a3a33142a8c8fb60a0286131054c14253baf92c96cbb051cf9231431062057249b2