diff --git a/json_pure-2.1.0.gem b/json_pure-2.1.0.gem
deleted file mode 100644
index b88d759..0000000
Binary files a/json_pure-2.1.0.gem and /dev/null differ
diff --git a/json_pure-2.5.1.gem b/json_pure-2.5.1.gem
new file mode 100644
index 0000000..8bf806c
Binary files /dev/null and b/json_pure-2.5.1.gem differ
diff --git a/ruby-json_pure.spec b/ruby-json_pure.spec
index eb77067..f4a5f2c 100644
--- a/ruby-json_pure.spec
+++ b/ruby-json_pure.spec
@@ -1,14 +1,14 @@
 %define gemdir %(ruby -rrubygems -e'puts Gem.default_dir')
 %define gemname %(echo %{name} | sed 's,^ruby-,,')
 Name:          ruby-json_pure
-Version:       2.1.0
+Version:       2.5.1
 Release:       1mamba
 Summary:       A JSON implementation in pure Ruby
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://flori.github.io/json/
+URL:           https://flori.github.io/json/
 Source:        http://rubygems.org/downloads/json_pure-%{version}.gem
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
@@ -26,7 +26,7 @@ A JSON implementation in pure Ruby.
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 gem install --no-user-install --ignore-dependencies -u -i "%{buildroot}%{gemdir}" \
-   --no-ri --no-rdoc -n "%{buildroot}/usr/bin" "%{SOURCE0}"
+   -n "%{buildroot}/usr/bin" "%{SOURCE0}"
 
 rm -rf %{buildroot}%{gemdir}/cache
 rm -f %{buildroot}%{gemdir}/gems/%{gemname}-%{version}/.gitignore
@@ -38,10 +38,15 @@ rm -f %{buildroot}%{gemdir}/gems/%{gemname}-%{version}/.gitignore
 %defattr(-,root,root)
 %dir %{gemdir}/gems/%{gemname}-%{version}
 %{gemdir}/gems/%{gemname}-%{version}/*
-%{gemdir}/gems/%{gemname}-%{version}/.travis.yml
+#%{gemdir}/gems/%{gemname}-%{version}/.travis.yml
 %{gemdir}/specifications/%{gemname}-%{version}.gemspec
+%dir %{_libdir}/ruby/gems/*/doc/%{gemname}-%{version}
+%{_libdir}/ruby/gems/*/doc/%{gemname}-%{version}/*
 
 %changelog
+* Sun Feb 28 2021 Automatic Build System <autodist@mambasoft.it> 2.5.1-1mamba
+- automatic version update by autodist
+
 * Wed Jul 18 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 2.1.0-1mamba
 - update to 2.1.0