diff --git a/bignum-0.50.tar.gz b/bignum-0.50.tar.gz
deleted file mode 100644
index c031656..0000000
Binary files a/bignum-0.50.tar.gz and /dev/null differ
diff --git a/bignum-0.51.tar.gz b/bignum-0.51.tar.gz
new file mode 100644
index 0000000..a1ca113
Binary files /dev/null and b/bignum-0.51.tar.gz differ
diff --git a/perl-bignum.spec b/perl-bignum.spec
index 4768c93..2883b0a 100644
--- a/perl-bignum.spec
+++ b/perl-bignum.spec
@@ -1,6 +1,6 @@
 Name:      perl-bignum
-Version:   0.50
-Release:   4
+Version:   0.51
+Release:   1
 Summary:   transparent big number support
 License:   GPL or Artistic
 URL:       https://metacpan.org/release/bignum
@@ -48,5 +48,8 @@ make test TEST_VERBOSE=1
 %{_mandir}/man3/*
 
 %changelog
+* Sat Jul 25 2020 shixuantong <shixuantong@huawei.com> - 0.51-1
+- update to 0.51-1
+
 * Wed Aug 28 2019 openEuler Buildteam <buildteam@openeuler.org> - 0.50-4
 - Package init