diff --git a/python-ecdsa.spec b/python-ecdsa.spec
index 6822c52..7b5689c 100644
--- a/python-ecdsa.spec
+++ b/python-ecdsa.spec
@@ -1,19 +1,17 @@
 Name:          python-ecdsa
-Version:       0.16.1
+Version:       0.17.0
 Release:       1mamba
 Summary:       An easy-to-use implementation of ECDSA cryptography (Elliptic Curve Digital Signature Algorithm)
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           https://pypi.python.org/pypi/ecdsa
-Source:        https://pypi.python.org/packages/source/e/ecdsa/ecdsa-%{version}.tar.gz
+URL:           https://pypi.org/project/ecdsa/
+Source:        https://pypi.debian.net/ecdsa/ecdsa-%{version}.tar.gz
 License:       MIT
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: libpython-devel
 ## AUTOBUILDREQ-END
 Requires:      python >= %python_version
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 %{summary}.
@@ -40,6 +38,9 @@ sed -i "s,.*/man/.*,&.gz," %{name}.filelist
 %doc LICENSE
 
 %changelog
+* Fri May 28 2021 Automatic Build System <autodist@mambasoft.it> 0.17.0-1mamba
+- automatic version update by autodist
+
 * Wed Dec 02 2020 Automatic Build System <autodist@mambasoft.it> 0.16.1-1mamba
 - automatic version update by autodist