diff --git a/shim.spec b/shim.spec
index 96bf114fd5db3740e3434c2507c3cc7e18789ded..33f6d1c3f7c689474208a1f137f86080ea800ceb 100644
--- a/shim.spec
+++ b/shim.spec
@@ -22,7 +22,7 @@
 
 Name:	   	   shim
 Version:	   15
-Release:       20
+Release:       21
 Summary:	   First-stage UEFI bootloader
 ExclusiveArch: x86_64 aarch64
 License:	   BSD
@@ -33,7 +33,7 @@ Source2:       BOOTX64.CSV
 
 Patch0000:     0001-fix-unaligned-point-value-with-GCC9.patch
 
-BuildRequires: elfutils-libelf-devel openssl-devel openssl git pesign gnu-efi gnu-efi-devel gcc
+BuildRequires: elfutils-libelf-devel openssl-devel openssl pesign gnu-efi gnu-efi-devel gcc
 Requires:      dbxtool efi-filesystem mokutil
 Provides:	   bundled(openssl) = 1.0.2j
 Provides:      shim-%{efi_arch}
@@ -66,7 +66,7 @@ use this package or when debugging this package.
 
 %prep
 #chmod +x %{SOURCE100}
-%autosetup -n shim-%{version} -p1 -S git
+%autosetup -n shim-%{version} -p1
 git config --unset user.email
 git config --unset user.name
 mkdir build-%{efi_arch}
@@ -130,6 +130,9 @@ cd ..
 /usr/src/debug/%{name}-%{version}-%{release}/*
 
 %changelog
+* Fri Jul 30 2021 chenyanpanHW <chenyanpan@huawei.com> - 15-21
+- DESC: delete -S git from %autosetup, and delete BuildRequires git
+
 * Tue Mar 9 2021 panxiaohe <panxiaohe@huawei.com> - 15-20
 - modify efidir to _vendor