diff --git a/python-regex.spec b/python-regex.spec
index c1f4558..5cf6f25 100644
--- a/python-regex.spec
+++ b/python-regex.spec
@@ -1,5 +1,5 @@
 Name:          python-regex
-Version:       2021.8.3
+Version:       2021.8.21
 Release:       1mamba
 Summary:       regex is an alternative to the re package in the Python standard library
 Group:         System/Libraries
@@ -10,6 +10,7 @@ URL:           https://pypi.org/project/regex/
 Source:        https://pypi.debian.net/regex/regex-%{version}.tar.gz
 License:       Python Software Foundation License
 ## AUTOBUILDREQ-BEGIN
+#libpthread.so.0()(64bit): /usr/lib64/libpthread.so: file not owned by any package
 BuildRequires: glibc-devel
 BuildRequires: libpython3-devel
 ## AUTOBUILDREQ-END
@@ -41,6 +42,9 @@ CFLAGS="%{optflags}" %{__python} setup.py build
 %defattr(-,root,root)
 
 %changelog
+* Sun Aug 22 2021 Automatic Build System <autodist@mambasoft.it> 2021.8.21-1mamba
+- automatic version update by autodist
+
 * Wed Aug 04 2021 Automatic Build System <autodist@mambasoft.it> 2021.8.3-1mamba
 - automatic version update by autodist