diff --git a/python-flask.spec b/python-flask.spec
index 056596218a894189e25f53517651cef661ff9aae..ed41dad7f5439f4111da24afe746ef9fceff8292 100644
--- a/python-flask.spec
+++ b/python-flask.spec
@@ -1,6 +1,6 @@
 Name:            python-flask
 Version:         1.1.2
-Release:         1
+Release:         2
 Epoch:           1
 Summary:         A lightweight WSGI web application framework
 License:         BSD
@@ -20,7 +20,7 @@ frameworks.
 %package -n python3-flask
 Summary:         python-flask for python 3 version
 %{?python_provide:%python_provide python3-flask}
-Requires:        python3-jinja2 python3-werkzeug python3-itsdangerous python3-click
+Requires:        python3-jinja2 python3-werkzeug python3-itsdangerous python3-click python3-simplejson
 
 %description -n python3-flask
 Python-flask for python 3 version
@@ -51,6 +51,9 @@ PYTHONPATH=%{buildroot}%{python3_sitelib} py.test-%{python3_version} -v || :
 %{python3_sitelib}/*
 
 %changelog
+* Thu Sep 30 2021 Jiachen Fan<fanjiachen3@huawei.com> - 1.1.2-2
+- add missing install Requires python3-simplejson
+
 * Thu Feb 04 2021 zhaorenhai <zhaorenhai@hotmail.com> - 1.1.2-1
 - Upgrade version to 1.1.2