diff --git a/samtools.spec b/samtools.spec
index 03eb8ef31e0fcb35a5919d178b86eaa7df33d528..7d25c06602a08b8ca154c9d9ad2464499d4b6ac5 100644
--- a/samtools.spec
+++ b/samtools.spec
@@ -1,12 +1,12 @@
 Name:    samtools
 Version: 1.12
-Release: 2
+Release: 3
 Summary: Tools (written in C using htslib) for manipulating next-generation sequencing data 
 License: MIT and BSD
-URL:	 http://www.htslib.org
+URL:     http://www.htslib.org
 Source0: https://github.com/samtools/samtools/archive/%{name}-%{version}.tar.bz2
 
-BuildRequires: 	gcc gdb autoconf automake make zlib-devel htslib-devel perl-Getopt-Long ncurses-devel bzip2-devel xz-devel
+BuildRequires: gcc autoconf automake make zlib-devel htslib-devel ncurses-devel bzip2-devel xz-devel
 
 %description
 The original samtools package has been split into three separate but tightly coordinated projects:
@@ -15,10 +15,10 @@ The original samtools package has been split into three separate but tightly coo
     bcftools: calling and other tools for handling VCF, BCF
 See also http://github.com/samtools/
 
-%package devel
-Summary:	Header files and libraries for compiling against %{name}
-Group:		Development/Libraries
-Requires:	%{name} = %{version}-%{release}
+%package    devel
+Summary:    Header files and libraries for compiling against %{name}
+Group:      Development/Libraries
+Requires:   %{name} = %{version}-%{release}
 
 %description devel
 Header files and libraries for compiling against %{name}
@@ -57,6 +57,10 @@ install -D -p -m 0755 libbam.a %{buildroot}%{_libdir}/libbam.a
 %{_libdir}/libbam.a
 
 %changelog
+* Tue Jul 20 2021 herengui <herengui@uniontech.com> - 1.12-3
+- remove useless buildrequires.
+- replace tab with space
+
 * Thu Mar 25 2021 herengui <herengui@uniontech.com> - 1.12-2
 - Add devel package