diff --git a/spyder.spec b/spyder.spec
index 43769fa..3c0e379 100644
--- a/spyder.spec
+++ b/spyder.spec
@@ -1,6 +1,6 @@
 Name:          spyder
 Version:       4.2.1
-Release:       1mamba
+Release:       3mamba
 Summary:       A Scientific PYthon Development EnviRonment 
 Group:         System/Libraries
 Vendor:        openmamba
@@ -15,14 +15,32 @@ BuildRequires: libpython3-devel
 BuildRequires: libpython3-devel
 Requires:      python3 >= %python3_version
 Requires:      PyQt5-py3
-#Requires:      pyflakes
-#Requires:      python-rope
-#Requires:      python-pep8
 Requires:      python-psutil-py3
 Requires:      python-matplotlib-py3
-#Requires:      ipython3
 Requires:      python-Sphinx
 Requires:      python-pygments-py3
+Requires:      python-pyzmq-py3
+Requires:      python-atomicwrites-py3
+Requires:      python-spyder-kernels-py3
+Requires:      python-pickleshare-py3
+Requires:      python-QtPy-py3
+Requires:      python-QDarkStyle-py3
+Requires:      python-QtAwesome-py3
+Requires:      python-qtconsole-py3
+Requires:      python-diff-match-patch-py3
+Requires:      ipython
+Requires:      python-traitlets-py3
+Requires:      python-decorator-py3
+Requires:      python-prompt_toolkit-py3
+Requires:      python-wcwidth-py3
+Requires:      python-three-merge-py3
+Requires:      python-intervaltree-py3
+Requires:      python-jupyter_client-py3
+Requires:      python-textdistance-py3
+Requires:      pylint-py3
+Requires:      python-cloudpickle-py3
+Requires:      python-xdg-py3
+Requires:      python-ipykernel-py3
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -49,6 +67,12 @@ sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 %defattr(-,root,root)
 
 %changelog
+* Thu Jan 21 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 4.2.1-3mamba
+- added more python requirements
+
+* Wed Jan 20 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 4.2.1-2mamba
+- added a (first) series of python requirements
+
 * Tue Jan 19 2021 Automatic Build System <autodist@mambasoft.it> 4.2.1-1mamba
 - automatic version update by autodist