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-# Quantum Package 2.0
+# Quantum Package 2.1
 
 <img src="https://raw.githubusercontent.com/QuantumPackage/qp2/master/data/qp2.png" width="250">
 
 
+[![DOI](https://zenodo.org/badge/167513335.svg)](https://zenodo.org/badge/latestdoi/167513335)
+
+
+
 [*Quantum package 2.0: an open-source determinant-driven suite of programs*](https://pubs.acs.org/doi/10.1021/acs.jctc.9b00176)\
 Y. Garniron, K. Gasperich, T. Applencourt, A. Benali, A. Ferté, J. Paquier, B. Pradines, R. Assaraf, P. Reinhardt, J. Toulouse, P. Barbaresco, N. Renon, G. David, J. P. Malrieu, M. Véril, M. Caffarel, P. F. Loos, E. Giner and A. Scemama\
 [J. Chem. Theory Comput. 2019, 15, 6, 3591-3609](https://doi.org/10.1021/acs.jctc.9b00176)\