diff --git a/byacc-20170709.tgz b/byacc-20170709.tgz
deleted file mode 100644
index 5001deb..0000000
Binary files a/byacc-20170709.tgz and /dev/null differ
diff --git a/byacc.spec b/byacc.spec
index c3d45c5..429a5c1 100644
--- a/byacc.spec
+++ b/byacc.spec
@@ -1,10 +1,10 @@
 Name:           byacc
-Version:        1.9.20170709
-Release:        9
+Version:        1.9.20200330
+Release:        1
 Summary:        A parser generator
 License:        public domain
 URL:            https://invisible-island.net/byacc/byacc.html
-Source0:        ftp://invisible-island.net/byacc/byacc-20170709.tgz
+Source0:        https://invisible-island.net/datafiles/release/byacc.tar.gz
 
 BuildRequires:  gcc
 
@@ -18,7 +18,7 @@ rejected.
 %package_help
 
 %prep
-%autosetup -n byacc-20170709 -p1
+%autosetup -n byacc-20200330 -p1
 find . -type f -name \*.c -print0 | xargs -0 sed -i 's/YYSTACKSIZE 500/YYSTACKSIZE 10000/g'
 
 %build
@@ -43,6 +43,9 @@ ln -s yacc.1 %{buildroot}%{_mandir}/man1/byacc.1
 %{_mandir}/man1/*
 
 %changelog
+* Sta Jul 25 2020 xinghe <xinghe1@huawei.com> - 1.9.20200330-1
+- update version to 1.9.20200330
+
 * Wed Jan 22 2020 gulining<gulining1@huawei.com> - 1.9.20170709-9
 - Disable test
 
diff --git a/byacc.tar.gz b/byacc.tar.gz
new file mode 100644
index 0000000..f6dcd65
Binary files /dev/null and b/byacc.tar.gz differ