diff --git a/python-regex.spec b/python-regex.spec
index 4a29dc6..b11d420 100644
--- a/python-regex.spec
+++ b/python-regex.spec
@@ -1,5 +1,5 @@
 Name:          python-regex
-Version:       2020.11.13
+Version:       2021.3.17
 Release:       1mamba
 Summary:       regex is an alternative to the re package in the Python standard library
 Group:         System/Libraries
@@ -11,10 +11,9 @@ Source:        https://pypi.debian.net/regex/regex-%{version}.tar.gz
 License:       Python Software Foundation License
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: libpython-devel
+BuildRequires: libpython36-devel
 ## AUTOBUILDREQ-END
 Requires:      python >= %python_version
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 %{summary}.
@@ -42,6 +41,9 @@ CFLAGS="%{optflags}" %{__python} setup.py build
 %defattr(-,root,root)
 
 %changelog
+* Sat Mar 20 2021 Automatic Build System <autodist@mambasoft.it> 2021.3.17-1mamba
+- automatic version update by autodist
+
 * Mon Nov 16 2020 Automatic Build System <autodist@mambasoft.it> 2020.11.13-1mamba
 - automatic version update by autodist