diff --git a/funcparserlib-0.3.6.tar.gz b/funcparserlib-0.3.6.tar.gz
deleted file mode 100644
index 9dcd094..0000000
Binary files a/funcparserlib-0.3.6.tar.gz and /dev/null differ
diff --git a/funcparserlib-1.0.0a0.tar.gz b/funcparserlib-1.0.0a0.tar.gz
new file mode 100644
index 0000000..7236773
Binary files /dev/null and b/funcparserlib-1.0.0a0.tar.gz differ
diff --git a/python-funcparserlib.spec b/python-funcparserlib.spec
index 6074a79..cc2f696 100644
--- a/python-funcparserlib.spec
+++ b/python-funcparserlib.spec
@@ -1,11 +1,11 @@
 %global _empty_manifest_terminate_build 0
 Name:		python-funcparserlib
-Version:	0.3.6
+Version:	1.0.0a0
 Release:	1
 Summary:	Recursive descent parsing library based on functional combinators
 License:	MIT
 URL:		https://github.com/vlasovskikh/funcparserlib
-Source0:	https://files.pythonhosted.org/packages/cb/f7/b4a59c3ccf67c0082546eaeb454da1a6610e924d2e7a2a21f337ecae7b40/funcparserlib-0.3.6.tar.gz
+Source0:	https://files.pythonhosted.org/packages/75/e2/a132f2b624a2bad2c3233afa7c8273ee192d0660b55dbcb22f68ff9de819/funcparserlib-1.0.0a0.tar.gz
 BuildArch:	noarch
 
 
@@ -69,7 +69,7 @@ of comments included. It features the longest parsed prefix error reporting, as
 as a tiny lexer generator for token position tracking.
 
 %prep
-%autosetup -n funcparserlib-0.3.6
+%autosetup -n funcparserlib-%{version}
 
 %build
 %py3_build
@@ -109,5 +109,8 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Fri Feb 25 2022 huangtianhua <huangtianhua@huawei.com> - 1.0.0a0-1
+- Upgrade to 1.0.0a0 to fix obs build error
+
 * Mon Nov 23 2020 Python_Bot <Python_Bot@openeuler.org>
 - Package Spec generated